MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
|
|
- Oliver Waters
- 6 years ago
- Views:
Transcription
1 Exam Chapter 15 Chromosomal Basis for Inheritance AP Biology Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) When Thomas Hunt Morgan crossed his red-eyed F1 generation flies to each other, the F2 generation included both red- and white-eyed flies. Remarkably, all the white-eyed flies were male. What was the explanation for this result? A) Other female-specific factors influence eye color in flies. B) Other male-specific factors influence eye color in flies. C) The gene involved is on an autosome. D) The gene involved is on the X chromosome. E) The gene involved is on the Y chromosome. 2) Morgan and his colleagues worked out a set of symbols to represent fly genotypes. Which of the following are representative? A) AaBb AaBb B) 46, XY or 46, XX C) D) vg+vgse+se vgvgsese 1) 2) 3) A man with Klinefelter syndrome (47, XXY) is expected to have any of the following EXCEPT 3) A) female body characteristics. B) possible breast enlargement. C) increased testosterone. D) lower sperm count. E) long limbs. 4) A woman is found to have 47 chromosomes, including 3 X chromosomes. Which of the following describes her expected phenotype? A) Normal female B) Sterile female C) Masculine characteristics such as facial hair D) Enlarged genital structures E) Excessive emotional instability 4) 5) Males are more often affected by sex-linked traits than females because 5) A) males are hemizygous for the X chromosome. B) X chromosomes in males generally have more mutations than X chromosomes in females. C) female hormones such as estrogen often compensate for the effects of mutations on the X. D) mutations on the Y chromosome often worsen the effects of X-linked mutations. E) male hormones such as testosterone often alter the effects of mutations on the X chromosome. 6) What is the chromosomal system for determining sex in mammals? 6) A) X-0 B) X-X C) Z-W D) X-Y E) Haploid-diploid 1
2 7) What is the chromosomal system for sex determination in birds? 7) A) X-X B) X-Y C) X-0 D) Haploid-diploid E) Z-W 8) What is the chromosomal system of sex determination in most species of ants and bees? 8) A) X-0 B) Z-W C) Haploid-diploid D) X-X E) X-Y 9) SRY is best described in which of the following ways? 9) A) A gene present on the X chromosome that triggers female development B) An autosomal gene that is required for the expression of genes on the Y chromosome C) Required for development, and males or females lacking the gene do not survive past early childhood D) An autosomal gene that is required for the expression of genes on the X chromosome E) A gene region present on the Y chromosome that triggers male development 10) In cats, black fur color is caused by an X-linked allele; the other allele at this locus causes orange color. The heterozygote is tortoiseshell. What kinds of offspring would you expect from the cross of a black female and an orange male? A) Tortoiseshell females; tortoiseshell males B) Tortoiseshell females; black males C) Orange females; orange males D) Black females; orange males E) Orange females; black males 11) Red-green color blindness is a sex-linked recessive trait in humans. Two people with normal color vision have a color-blind son. What are the genotypes of the parents? A) XcXc and XCY B) XCXc and XCY C) XCXC and XCY D) XCXC and XcY E) XcXc and XcY 10) 11) 12) Calico cats are female because 12) A) a male inherits only one of the two X-linked genes controlling hair color. B) the Y chromosome has a gene blocking orange coloration. C) multiple crossovers on the Y chromosome prevent orange pigment production. D) the males die during embryonic development. E) only females can have Barr bodies. 2
3 13) In birds, sex is determined by a ZW chromosome scheme. Males are ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is sometimes present on the Z chromosome in pigeons. What would be the sex ratio in the offspring of a cross between a male that is heterozygous for the lethal allele and a normal female? A) 4:3 male to female B) 2:1 male to female C) 3:1 male to female D) 1:2 male to female E) 1:1 male to female 13) Refer to the following information to answer the questions below. A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal height. The man's father was six feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. 14) How many of their daughters might be expected to be color-blind dwarfs? 14) A) One out of four B) Three out of four C) None D) All E) Half 15) What proportion of their sons would be color-blind and of normal height? 15) A) All B) Three out of four C) One out of four D) None E) Half 16) They have a daughter who is a dwarf with normal color vision. What is the probability that she is heterozygous for both genes? A) 0.25 B) 1.00 C) 0.75 D) 0.50 E) 0 16) 17) A Barr body is normally found in the nucleus of which kind of human cell? 17) A) Somatic cells of a male only B) Unfertilized egg cells only C) Both male and female somatic cells D) Sperm cells only E) Somatic cells of a female only 18) Sex determination in mammals is due to the SRY region of the Y chromosome. An abnormality could allow which of the following to have a male phenotype? A) Translocation of SRY to an autosome of a 46, XX individual B) A person with one normal and one shortened (deleted) X C) Turner syndrome, 45, X D) Down syndrome, 46, XX E) A person with too many X chromosomes 18) 3
4 19) How would one explain a testcross involving F1 dihybrid flies in which more parental-type offspring than recombinant-type offspring are produced? A) The two genes are linked. B) Both of the characters are controlled by more than one gene. C) Recombination did not occur in the cell during meiosis. D) The testcross was improperly performed. E) The two genes are linked but on different chromosomes. 19) 20) New combinations of linked genes are due to which of the following? 20) A) Crossing over B) Independent assortment C) Mixing of sperm and egg D) Nondisjunction E) Deletions 21) What does a frequency of recombination of 50% indicate? 21) A) Independent assortment is hindered. B) The genes are located on sex chromosomes. C) All of the offspring have combinations of traits that match one of the two parents. D) Abnormal meiosis has occurred. E) The two genes are likely to be located on different chromosomes. 22) A 0.1% frequency of recombination is observed 22) A) only on genetic maps of viral chromosomes. B) only in sex chromosomes. C) on unlinked chromosomes. D) in genes located very close to one another on the same chromosome. E) in any two genes on different chromosomes. 23) The following is a map of four genes on a chromosome: 23) Figure 15.1 Between which two genes would you expect the highest frequency of recombination? A) E and G B) A and G C) W and E D) A and W E) A and E 24) What is the reason that linked genes are inherited together? 24) A) Alleles are paired together during meiosis. B) Genes align that way during metaphase I of meiosis. C) They are located close together on the same chromosome. D) Chromosomes are unbreakable. E) The number of genes in a cell is greater than the number of chromosomes. 4
5 D, F, and J are three genes in Drosophila. The recombination frequencies for two of the three genes are shown in Figure Figure ) Genes D and F could be 25) A) located far from each other on the same chromosome. B) located very near to each other on the same chromosome. C) located on different chromosomes. D) Both A and B E) Both A and C 26) The frequency of crossing over between any two linked genes will be which of the following? 26) A) Higher if they are recessive B) Proportional to the distance between them C) The same as if they were not linked D) Dependent on how many alleles there are E) Determined by their relative dominance 27) Which of the following is a map of a chromosome that includes the positions of genes relative to visible chromosomal features, such as stained bands? A) Linkage map B) Physical map C) Cytogenetic map D) Banded map E) Recombination map 27) 28) If a human interphase nucleus contains three Barr bodies, it can be assumed that the person 28) A) is a male. B) has four X chromosomes. C) has Turner syndrome. D) has Down syndrome. E) has hemophilia. 29) A cell that has 2n + 1 chromosomes is 29) A) trisomic. B) triploid. C) polyploid. D) monosomic. E) euploid. 5
6 30) One possible result of chromosomal breakage is for a fragment to join a nonhomologous chromosome. What is this alteration called? A) Duplication B) Disjunction C) Translocation D) Deletion E) Inversion 31) In humans, male-pattern baldness is controlled by an autosomal gene that occurs in two allelic forms. Allele Hn determines nonbaldness, and allele Hb determines pattern baldness. In males, because of the presence of testosterone, allele Hb is dominant over Hn. If a man and woman both with genotype HnHb have a son, what is the chance that he will eventually be bald? A) 50% B) 0% C) 75% D) 25% E) 33% 32) Of the following human aneuploidies, which is the one that generally has the most severe impact on the health of the individual? A) 47, XXX B) 47, +21 C) 45, X D) 47, XXY E) 47, XYY 30) 31) 32) 33) Women with Turner syndrome have a genotype characterized as which of the following? 33) A) A karyotype of 47, XXX B) aabb C) A deletion of the Y chromosome D) Mental retardation and short arms E) A karyotype of 45, X 34) The frequency of Down syndrome in the human population is most closely correlated with which of the following? A) Age of the father B) Average of the ages of mother and father C) Exposure of pregnant women to environmental pollutants D) Frequency of new meiosis E) Age of the mother 34) 35) What is the source of the extra chromosome 21 in an individual with Down syndrome? 35) A) Duplication of the chromosome B) It is impossible to detect with current technology C) Nondisjunction in the father only D) Nondisjunction in the mother only E) Nondisjunction or translocation in either parent 36) Down syndrome has a frequency in the U.S. population of ~ 1/700 live births. In which of the following groups would you expect this to be significantly higher? A) The Inuit and other peoples in very cold habitats B) Very small population groups C) People in Latin or South America D) People living in equatorial areas of the world E) No groups have such higher frequency 36) 6
7 37) A couple has a child with Down syndrome when the mother is 39 years old at the time of delivery. Which is the most probable cause? A) The woman inherited this tendency from her parents. B) One member of the couple carried a translocation. C) One member of the couple underwent nondisjunction in gamete production. D) One member of the couple underwent nondisjunction in somatic cell production. 38) In 1956 Tijo and Levan first successfully counted human chromosomes. The reason it would have taken so many years to have done so would have included all but which of the following? A) Chromosomes were not distinguishable during interphase. B) Chromosomes were piled up on top of one another in the nucleus. C) A method had not yet been devised to halt mitosis at metaphase. D) Watson and Crick's structure of DNA was not done until ) In order for chromosomes to undergo inversion or translocation, which of the following is required? A) Immunological insufficiency B) Point mutation C) Advanced maternal age D) Chromosome breakage and rejoining E) Meiosis 40) A certain kind of snail can have a right-handed direction of shell coiling (D) or left handed coiling (d). If direction of coiling is due to a protein deposited by the mother in the egg cytoplasm, then a Dd egg-producing snail and a dd sperm-producing snail will have offspring of which genotype(s) and phenotype(s)? A) All Dd; all right coiling B) 1/2 Dd : 1/2 dd; all right coiling C) All Dd; half right and half left coiling D) All Dd; all left coiling E) 1/2 Dd : 1/2 dd; half right and half left coiling 37) 38) 39) 40) 7
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Calico cats are female because 1) A) the Y chromosome has a gene blocking orange coloration.
More informationChapter 15 Notes 15.1: Mendelian inheritance chromosome theory of inheritance wild type 15.2: Sex-linked genes
Chapter 15 Notes The Chromosomal Basis of Inheritance Mendel s hereditary factors were genes, though this wasn t known at the time Now we know that genes are located on The location of a particular gene
More informationThe Chromosomal Basis of Inheritance
The Chromosomal Basis of Inheritance Factors and Genes Mendel s model of inheritance was based on the idea of factors that were independently assorted and segregated into gametes We now know that these
More informationThe Chromosomal Basis of Inheritance
LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 15 The Chromosomal Basis of Inheritance
More informationCh. 15 The Chromosomal Basis of Inheritance
Ch. 15 The Chromosomal Basis of Inheritance Nov 12 12:58 PM 1 Essential Question: Are chromosomes the basis of inheritance? Nov 12 1:00 PM 2 1902 Walter S. Sutton, Theodor Boveri, et al Chromosome Theory
More informationChapter 15: The Chromosomal Basis of Inheritance
Name Chapter 15: The Chromosomal Basis of Inheritance 15.1 Mendelian inheritance has its physical basis in the behavior of chromosomes 1. What is the chromosome theory of inheritance? 2. Explain the law
More informationChapter 15: The Chromosomal Basis of Inheritance
Name Period Chapter 15: The Chromosomal Basis of Inheritance Concept 15.1 Mendelian inheritance has its physical basis in the behavior of chromosomes 1. What is the chromosome theory of inheritance? 2.
More informationThe Chromosomal Basis of Inheritance
Chapter 15 The Chromosomal Basis of Inheritance PowerPoint Lectures for Biology, Seventh Edition Neil Campbell and Jane Reece Lectures by Chris Romero Overview: Locating Genes on Chromosomes A century
More informationTHE CHROMOSOMAL BASIS OF INHERITANCE CHAPTER 15
THE CHROMOSOMAL BASIS OF INHERITANCE CHAPTER 15 What you must know: Inheritance in sex-linked genes. Inheritance of linked genes and chromosomal mapping. How alteration of chromosome number or structurally
More informationThe Chromosomal Basis of Inheritance
Chapter 15 The Chromosomal Basis of Inheritance PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions
More informationThe Chromosomal Basis of Inheritance
Chapter 15 The Chromosomal Basis of Inheritance PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions
More informationThe Chromosomal Basis of Inheritance
LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 15 The Chromosomal Basis of Inheritance
More informationThe Chromosomal Basis of Inheritance
LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 15 The Chromosomal Basis of Inheritance
More informationThe Chromosomal Basis of Inheritance
LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 15 The Chromosomal Basis of Inheritance
More informationThe Chromosomal Basis Of Inheritance
The Chromosomal Basis Of Inheritance Chapter 15 Objectives Explain the chromosomal theory of inheritance and its discovery. Explain why sex-linked diseases are more common in human males than females.
More informationChromosomes and Human Inheritance. Chapter 11
Chromosomes and Human Inheritance Chapter 11 11.1 Human Chromosomes Human body cells have 23 pairs of homologous chromosomes 22 pairs of autosomes 1 pair of sex chromosomes Autosomes and Sex Chromosomes
More informationBIOLOGY. The Chromosomal Basis of Inheritance CAMPBELL. Reece Urry Cain Wasserman Minorsky Jackson
CAMPBELL BIOLOGY TENTH EDITION Reece Urry Cain Wasserman Minorsky Jackson 15 The Chromosomal Basis of Inheritance Lecture Presentation by Nicole Tunbridge and Kathleen Fitzpatrick Where are Mendel s hereditary
More informationHuman Heredity: The genetic transmission of characteristics from parent to offspring.
Human Heredity: The genetic transmission of characteristics from parent to offspring. Karyotype : picture of the actual chromosomes arranged in pairs, paired and arranged from largest to smallest. Human
More informationBIOLOGY - CLUTCH CH.15 - CHROMOSOMAL THEORY OF INHERITANCE
!! www.clutchprep.com Chromosomal theory of inheritance: chromosomes are the carriers of genetic material. Independent Assortment alleles for different characters sort independently of each other during
More informationChromosomes, Mapping, and the Meiosis-Inheritance Connection. Chapter 13
Chromosomes, Mapping, and the Meiosis-Inheritance Connection Chapter 13 Chromosome Theory Chromosomal theory of inheritance - developed in 1902 by Walter Sutton - proposed that genes are present on chromosomes
More informationLab Activity 36. Principles of Heredity. Portland Community College BI 233
Lab Activity 36 Principles of Heredity Portland Community College BI 233 Terminology of Chromosomes Homologous chromosomes: A pair, of which you get one from mom, and one from dad. Example: the pair of
More informationThe Chromosomal Basis of Inheritance
Chapter 15 The Chromosomal Basis of Inheritance Lecture Outline Overview: Locating Genes on Chromosomes Today we know that genes Gregor Mendel s hereditary factors are located on chromosomes. A century
More informationGenetics - Problem Drill 06: Pedigree and Sex Determination
Genetics - Problem Drill 06: Pedigree and Sex Determination No. 1 of 10 1. The following is a pedigree of a human trait. Determine which trait this is. (A) Y-linked Trait (B) X-linked Dominant Trait (C)
More informationThe Chromosomal Basis of Inheritance
Chapter 15 The Chromosomal Basis of Inheritance PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions
More informationHuman Genetic Disorders
Human Genetic Disorders HOMOLOGOUS CHROMOSOMES Human somatic cells have 23 pairs of homologous chromosomes 23 are inherited from the mother and 23 from the father HOMOLOGOUS CHROMOSOMES Autosomes o Are
More informationThe Chromosomal Basis of Inheritance
Chapter 15 The Chromosomal Basis of Inheritance Lecture Outline Overview: Locating Genes Along Chromosomes Today we know that genes Gregor Mendel s hereditary factors are located on chromosomes. A century
More informationRelating Mendelian Inheritance to the Behavior of Chromosomes
Chapter 15 Relating Mendelian Inheritance to the Behavior of Chromosomes 1. Explain how the observations of cytologists and geneticists provided the basis for the chromosome theory of inheritance. 2. Explain
More informationCHROMOSOMAL THEORY OF INHERITANCE
AP BIOLOGY EVOLUTION/HEREDITY UNIT Unit 1 Part 7 Chapter 15 ACTIVITY #10 NAME DATE PERIOD CHROMOSOMAL THEORY OF INHERITANCE The Theory: Genes are located on chromosomes Chromosomes segregate and independently
More informationPatterns in Inheritance. Chapter 10
Patterns in Inheritance Chapter 10 What you absolutely need to know Punnett Square with monohybrid and dihybrid cross Heterozygous, homozygous, alleles, locus, gene Test cross, P, F1, F2 Mendel and his
More information100% were red eyed = red is dominant - He then bred 2 offspring from the F1 generation F1 = Rr x Rr
7. Gene Linkage and Cross-over Thomas Hunt Morgan 1910 Working with fruit flies he proved that genes on the same chromosome tended to be inherited together. = Linked genes ie. Eye color and hair color
More informationBy Mir Mohammed Abbas II PCMB 'A' CHAPTER CONCEPT NOTES
Chapter Notes- Genetics By Mir Mohammed Abbas II PCMB 'A' 1 CHAPTER CONCEPT NOTES Relationship between genes and chromosome of diploid organism and the terms used to describe them Know the terms Terms
More informationChapter 15 Chromosomes
Chapter 15 Chromosomes Chromosome theory of inheritance Genes located on chromosomes = gene locus Thomas Hunt Morgan, Columbia Univ. Fly room Drosophila 100s of offspring 2n = 8 3 prs autosomes X and Y
More informationChapter 15. The Chromosomal Basis of Inheritance. Concept 15.1 Mendelian inheritance has its physical basis in the behavior of chromosomes
Chapter 15 The Chromosomal Basis of Inheritance Overview: Locating Genes Along Chromosomes Today we know that genes Gregor Mendel s hereditary factors are located on chromosomes. A century ago, the relationship
More informationExam #2 BSC Fall. NAME_Key correct answers in BOLD FORM A
Exam #2 BSC 2011 2004 Fall NAME_Key correct answers in BOLD FORM A Before you begin, please write your name and social security number on the computerized score sheet. Mark in the corresponding bubbles
More information12.1 X-linked Inheritance in Humans. Units of Heredity: Chromosomes and Inheritance Ch. 12. X-linked Inheritance. X-linked Inheritance
Units of Heredity: Chromosomes and Inheritance Ch. 12 12.1 in Humans X-chromosomes also have non genderspecific genes Called X-linked genes Vision Blood-clotting X-linked conditions Conditions caused by
More informationA gene is a sequence of DNA that resides at a particular site on a chromosome the locus (plural loci). Genetic linkage of genes on a single
8.3 A gene is a sequence of DNA that resides at a particular site on a chromosome the locus (plural loci). Genetic linkage of genes on a single chromosome can alter their pattern of inheritance from those
More informationChapter 11. Chromosomes and Human Inheritance
Chapter 11 Chromosomes and Human Inheritance Human Chromosomes Human body cells have 23 pairs of homologous chromosomes 22 pairs of autosomes 1 pair of sex chromosomes Autosomesand Sex Chromosomes Paired
More informationChapter 15 Review Page 1
hapter 15 Review Page 1 1 ased on the results of this cross, you determine that the allele for round eyes is linked to the allele for no tooth. round eyes are dominant to vertical eyes, and the absence
More informationMULTIPLE CHOICE QUESTIONS
SHORT ANSWER QUESTIONS-Please type your awesome answers on a separate sheet of paper. 1. What is an X-linked inheritance pattern? Use a specific example to explain the role of the father and mother in
More informationSEX DETERMINATION AND INHERITANCE
Unit 23 SEX DETERMINATION AND INHERITANCE LEARNING OBJECTIVE: 1. To learn the difference in the types of sex chromosomes inherited by the human male and female. 2. To gain some appreciation for the concept
More informationAP Biology Chapter 15 Notes The Chromosomal Basis of Inheritance
AP Biology Chapter 15 Notes The Chromosomal Basis of Inheritance I. Chapter 15.1: Mendelian inheritance has its physical basis in the behavior of chromosomes. a. Chromosome theory of inheritance: i. Mendelian
More informationLECTURE 12 B: GENETIC AND INHERITANCE
LECTURE 12 B: GENETIC AND INHERITANCE Mendel s Legacy Genetics is everywhere these days and it will continue as a dominant force in biology and society for decades to come. Wouldn t it be nice if people
More informationGenetics Review. Alleles. The Punnett Square. Genotype and Phenotype. Codominance. Incomplete Dominance
Genetics Review Alleles These two different versions of gene A create a condition known as heterozygous. Only the dominant allele (A) will be expressed. When both chromosomes have identical copies of the
More informationCHAPTER 15 THE CHROMOSOMAL BASIS OF INHERITANCE. Section A: Relating Mendelism to Chromosomes
CHAPTER 15 THE CHROMOSOMAL BASIS OF INHERITANCE Section A: Relating Mendelism to Chromosomes 1. Mendelian inheritance has its physical basis in the behavior of chromosomes during sexual life cycles 2.
More informationMuch ha happened since Mendel
Chapter 15 Chromosomal Basis of Inheritance Much ha happened since Mendel We can show genes are located at particular loci on chromosomes Using fluorescent dye to mark a particular gene 1 The use of these
More informationBiology 105: Introduction to Genetics Midterm EXAM. Part1. Definitions. 1 Recessive allele. Name. Student ID. 2 Homologous chromosomes
Biology 105: Introduction to Genetics Midterm EXAM Part1 Definitions 1 Recessive allele Name Student ID 2 Homologous chromosomes Before starting, write your name on the top of each page Make sure you have
More informationThe form of cell division by which gametes, with half the number of chromosomes, are produced. Chromosomes
& Karyotypes The form of cell division by which gametes, with half the number of chromosomes, are produced. Homologous Chromosomes Pair of chromosomes (maternal and paternal) that are similar in shape,
More informationChapter 13 Meiosis and Sexual Life Cycles
reproduction are different in that transmit 100% of their genes to their reproducing sexually only transmit progeny, whereas individuals B) The species has 16 sets of A) individuals reproducing asexually
More informationUNIT IV. Chapter 14 The Human Genome
UNIT IV Chapter 14 The Human Genome UNIT 2: GENETICS Chapter 7: Extending Medelian Genetics I. Chromosomes and Phenotype (7.1) A. Two copies of each autosomal gene affect phenotype 1. Most human traits
More informationThe Discovery of Chromosomes and Sex-Linked Traits
The Discovery of Chromosomes and Sex-Linked Traits Outcomes: 1. Compare the pattern of inheritance produced by genes on the sex chromosomes to that produced by genes on autosomes, as investigated by Morgan.
More informationLecture 5 Chapter 4: Sex Determination and Sex-Linked Characteristics
Lecture 5 Chapter 4: Sex Determination and Sex-Linked Characteristics Sex determination may be controlled: chromosomally genetically (allelic) environmentally Chromosomal determination Haplodiploidy (bees,
More informationUnit 5 Review Name: Period:
Unit 5 Review Name: Period: 1 4 5 6 7 & give an example of the following. Be able to apply their meanings: Homozygous Heterozygous Dominant Recessive Genotype Phenotype Haploid Diploid Sex chromosomes
More informationPRINCIPLE OF INHERITANCE AND
29 CHAPTER 5 PRINCIPLE OF INHERITANCE AND VARIATION MULTIPLE-CHOICE QUESTIONS 1. All genes located on the same chromosome: a. Form different groups depending upon their relative distance b. Form one linkage
More information8/31/2017. Biology 102. Lecture 10: Chromosomes and Sex Inheritance. Independent Assortment. Independent Assortment. Independent Assortment
Biology 102 Lecture 10: Chromosomes and Sex Inheritance All of our examples of inheritance patterns have focused on single genes Humans have 25,000 genes! Genes on the same chromosome are inherited together
More informationChapter 11 Patterns of Chromosomal Inheritance
Inheritance of Chromosomes How many chromosomes did our parents gametes contain when we were conceived? 23, 22 autosomes, 1 sex chromosome Autosomes are identical in both male & female offspring For the
More informationLecture 17: Human Genetics. I. Types of Genetic Disorders. A. Single gene disorders
Lecture 17: Human Genetics I. Types of Genetic Disorders A. Single gene disorders B. Multifactorial traits 1. Mutant alleles at several loci acting in concert C. Chromosomal abnormalities 1. Physical changes
More informationThe Living Environment Unit 3 Genetics Unit 11 Complex Inheritance and Human Heredity-class key. Name: Class key. Period:
Name: Class key Period: Chapter 11 assignments Pages/Sections Date Assigned Date Due Topic: Recessive Genetic Disorders Objective: Describe some recessive human genetic disorders. _recessive_ alleles are
More information1042SCG Genetics & Evolutionary Biology Semester Summary
1042SCG Genetics & Evolutionary Biology Semester Summary Griffith University, Nathan Campus Semester 1, 2014 Topics include: - Mendelian Genetics - Eukaryotic & Prokaryotic Genes - Sex Chromosomes - Variations
More information10/26/2015. ssyy, ssyy
Biology 102 Lecture 10: Chromosomes and Sex Inheritance All of our examples of inheritance patterns have focused on single genes Humans have 25,000 genes! Genes on the same chromosome are inherited together
More informationChromosomes and Karyotypes
Chromosomes and Karyotypes Review of Chromosomes Super coiled DNA Structure: It may be A single coiled DNA molecule Chromosomes Or after replication, it may be two coiled DNA molecules held together at
More informationPRINCIPLES OF INHERITANCE AND VARIATION
CHAPTER 5 PRINCIPLES OF INHERITANCE AND VARIATION POINTS TO REMEMBER Allele : Various or slightly different forms of a gene, having same position on chromosomes. Phenotype : The observable or external
More informationMEIOSIS: Genetic Variation / Mistakes in Meiosis. (Sections 11-3,11-4;)
MEIOSIS: Genetic Variation / Mistakes in Meiosis (Sections 11-3,11-4;) RECALL: Mitosis and Meiosis differ in several key ways: MITOSIS: MEIOSIS: 1 round of cell division 2 rounds of cell division Produces
More informationChromosome Abnormalities
Chromosome Abnormalities Chromosomal abnormalities vs. molecular mutations Simply a matter of size Chromosomal abnormalities are big errors Two types of abnormalities 1. Constitutional problem present
More informationChapter 15 - Chromosomal Basis of Inheritance CHROMOSOMAL THEORY OF INHERITANCE
Chapter 15 - Chromosomal Basis of Inheritance CHROMOSOMAL THEORY OF INHERITANCE Early 1900 s cytology and genetics merge ~ parallels between chromosome behavior and Mendel s factors MENDEL s hereditary
More informationWhat creates variation in the offspring of sexually reproducing organisms?
What creates variation in the offspring of sexually reproducing organisms? 1. genetic recombination during fertilization 2. mitotic division in body cells 62% 3. crossing over in mitosis 4. homologous
More informationStudent Objectives: How do the events of meiosis explain the observations of Thomas Morgan? How can recombination during meiosis be explained?
Student Objectives: How do the events of meiosis explain the observations of Thomas Morgan? How can recombination during meiosis be explained? How can recombination during meiosis be utilized to locate
More informationLecture 13: May 24, 2004
Lecture 13: May 24, 2004 CH14: Mendel and the gene idea *particulate inheritance parents pass on discrete heritable units *gene- unit of inheritance which occupies a specific chromosomal location (locus)
More informationThe Chromosomal Basis of Inheritance
LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 15 The Chromosomal Basis of Inheritance
More informationSex Determination. Male = XY. Female = XX. 23 pairs of chromosomes (22 autosomes/body chromosomes, 1 sex)
Sex Determination Male = XY Female = XX 23 pairs of chromosomes (22 autosomes/body chromosomes, 1 sex) X chromosome----->large, rod shaped Y chromosome-----> smaller Mating of male & female XY x XX X Y
More informationProblem set questions from Final Exam Human Genetics, Nondisjunction, and Cancer
Problem set questions from Final Exam Human Genetics, Nondisjunction, and ancer Mapping in humans using SSRs and LOD scores 1. You set out to genetically map the locus for color blindness with respect
More informationFigure 1: Transmission of Wing Shape & Body Color Alleles: F0 Mating. Figure 1.1: Transmission of Wing Shape & Body Color Alleles: Expected F1 Outcome
I. Chromosomal Theory of Inheritance As early cytologists worked out the mechanism of cell division in the late 1800 s, they began to notice similarities in the behavior of BOTH chromosomes & Mendel s
More informationChapter 17 Genetics Crosses:
Chapter 17 Genetics Crosses: 2.5 Genetics Objectives 2.5.6 Genetic Inheritance 2.5.10.H Origin of the Science of genetics 2.5.11 H Law of segregation 2.5.12 H Law of independent assortment 2.5.13.H Dihybrid
More informationSEX DETERMINATION AND SEX CHROMOSOMES
Klug et al. 2006, 2009 Concepts of Genetics Chapter 7 STUDY UNIT 5 SEX DETERMINATION AND SEX CHROMOSOMES Some species reproduce asexually Most diploid eukaryotes reproduce sexually Parent (2n) Parent (2n)
More informationTerms. Primary vs. secondary sexual differentiation. Development of gonads vs. physical appearances
SEX DETERMINATION How is the sex of an organism determined? Is this process the same for all organisms? What is the benefit of sexual reproduction anyway? Terms Primary vs. secondary sexual differentiation
More informationBiology Unit III Exam» Form C
Directions: For each of the following questions, decide which of the choices is best and fill in the corresponding space on the answer document. 1. Which of these sets of chromosomes is found in a single
More informationDownloaded from Chapter 5 Principles of Inheritance and Variation
Chapter 5 Principles of Inheritance and Variation Genetics: Genetics is a branch of biology which deals with principles of inheritance and its practices. Heredity: It is transmission of traits from one
More informationChromosome pathology
Chromosome pathology S. Dahoun Department of Gynecology and Obstetrics, University Hospital of Geneva Cytogenetics is the study of chromosomes and the related disease states caused by abnormal chromosome
More informationThe questions below refer to the following terms. Each term may be used once, more than once, or not at all.
The questions below refer to the following terms. Each term may be used once, more than once, or not at all. a) telophase b) anaphase c) prometaphase d) metaphase e) prophase 1) DNA begins to coil and
More informationUnit 3 Chapter 16 Genetics & Heredity. Biology 3201
Unit 3 Chapter 16 Genetics & Heredity Biology 3201 Intro to Genetics For centuries, people have known that certain physical characteristics are passed from one generation to the next. Using this knowledge,
More informationThe bases on complementary strands of DNA bond with each other in a specific way A-T and G-C
1 Bio 1101 Lecture 6 Ch. 8: Cellular Basis of Reproduction 2 3 4 5 6 Cellular Basis of Reproduction & Inheritance In order for an organism to replace dead cells or to grow and produce new cells, existing
More informationIntroduction. Copyright 2002 Pearson Education, Inc., publishing as Benjamin Cummings
Introduction It was not until 1900 that biology finally caught up with Gregor Mendel. Independently, Karl Correns, Erich von Tschermak, and Hugo de Vries all found that Mendel had explained the basic rules
More informationHonors Biology Review Sheet to Chapter 9 Test
Honors Biology Review Sheet to Chapter 9 Test Name Per 1. Label the following flower: sepal, petal, anther, filament, style, ovary, stigma Draw in ovules and label. Color the female structure red and the
More informationGENETICS - NOTES-
GENETICS - NOTES- Warm Up Exercise Using your previous knowledge of genetics, determine what maternal genotype would most likely yield offspring with such characteristics. Use the genotype that you came
More informationGENETICS - CLUTCH CH.2 MENDEL'S LAWS OF INHERITANCE.
!! www.clutchprep.com CONCEPT: MENDELS EXPERIMENTS AND LAWS Mendel s Experiments Gregor Mendel was an Austrian monk who studied Genetics using pea plants Mendel used pure lines meaning that all offspring
More informationCampbell Biology 10. A Global Approach. Chapter 15 Linkage and Chromosomes
Lecture on General Biology 2 Campbell Biology 10 A Global Approach th edition Chapter 15 Linkage and Chromosomes Chul-Su Yang, Ph.D., chulsuyang@hanyang.ac.kr Infection Biology Lab., Dept. of Molecular
More informationChapter 11 Gene Expression
Chapter 11 Gene Expression 11-1 Control of Gene Expression Gene Expression- the activation of a gene to form a protein -a gene is on or expressed when it is transcribed. -cells do not always need to produce
More informationConcepts of Genetics Ninth Edition Klug, Cummings, Spencer, Palladino
PowerPoint Lecture Presentation for Concepts of Genetics Ninth Edition Klug, Cummings, Spencer, Palladino Copyright Copyright 2009 Pearson 2009 Pearson Education, Education, Inc. Inc. Chapter 7 Sex Determination
More informationGENETIC VARIATION AND PATTERNS OF INHERITANCE. SOURCES OF GENETIC VARIATION How siblings / families can be so different
9/22/205 GENETIC VARIATION AND PATTERNS OF INHERITANCE SOURCES OF GENETIC VARIATION How siblings / families can be so different Independent orientation of chromosomes (metaphase I of meiosis) Random fertilization
More information14.1 Human Chromosomes pg
14.1 Human Chromosomes pg. 392-397 Lesson Objectives Identify the types of human chromosomes in a karotype. Describe the patterns of the inheritance of human traits. Explain how pedigrees are used to study
More informationAP Biology Day 50. Friday, January 20, 2017
AP Biology Day 50 Friday, January 20, 2017 Do-Now 1. Review your Gene/cs Problems with your neighbors 2. Prepare for your Ch. 14 quiz Announcements Make sure to have a calculator Complete prac/ce quizzes!
More informationChapter 28 Modern Mendelian Genetics
Chapter 28 Modern Mendelian Genetics (I) Gene-Chromosome Theory Genes exist in a linear fashion on chromosomes Two genes associated with a specific characteristic are known as alleles and are located on
More informationGenetics. by their offspring. The study of the inheritance of traits is called.
Genetics DNA contains the genetic code for the production of. A gene is a part of DNA, which has enough bases to make for many different proteins. These specific proteins made by a gene decide the of an
More informationGenetics 1. Down s syndrome is caused by an extra copy of cshromosome no 21. What percentage of
Genetics 1. Down s syndrome is caused by an extra copy of cshromosome no 21. What percentage of offspring produced by an affected mother and a normal father would be affected by this disorder? (2003) 1)
More informationClass XII Chapter 5 Principles of Inheritance and Variation Biology
Question 1: Mention the advantages of selecting pea plant for experiment by Mendel. Mendel selected pea plants to carry out his study on the inheritance of characters from parents to offspring. He selected
More informationReview for Meiosis and Genetics Unit Test: Theory
Review for Meiosis and Genetics Unit Test: Theory 1. What is a karyotype? What stage of mitosis is the best for preparing karyotypes? a karyotype is a picture of all of the chromosomes in a cell, organized
More informationGenetics: Mendel and Beyond
Genetics: Mendel and Beyond 10 Genetics: Mendel and Beyond Put the following words in their correct location in the sentences below. crossing over fertilization meiosis zygote 4 haploid prophase I diploid
More informationThe bases on complementary strands of DNA bond with each other in a specific way A-T and G-C
1 Bio 1101 Lecture 6 (Guided Notes) Ch. 8: Cellular Basis of Reproduction 2 3 4 5 6 Cellular Basis of Reproduction & Inheritance In order for an organism to replace dead cells or to grow and produce new
More information14 2 Human Chromosomes
14-2 Human Chromosomes 1 of 25 Sex-Linked Genes Sex-Linked Genes The X chromosome and the Y chromosomes determine sex. Genes located on these chromosomes are called sex-linked genes. More than 100 sex-linked
More informationBSC 2010C SI EXAM 3 REVIEW REVIEW SESSION AT: Wednesday, 12 2 PM In CB2 Room 105
BSC 2010C SI EXAM 3 REVIEW REVIEW SESSION AT: Wednesday, 7/26 @ 12 2 PM In CB2 Room 105 Ch. 10 1) Where does the light cycle happen? Thylakoid membrane 2) Where does the calvin cycle happen? Stroma Ch.
More information