Chapter 3 Outline. I. Becoming Parents
|
|
- Jessie Harmon
- 6 years ago
- Views:
Transcription
1 Chapter 3 Outline I. Becoming Parents A. Conception 1. Changing Theories of Conception Two-seed theory: (Hippocrates) Joining of male and female seeds. There are no significant anatomical differences between male and female genitalia except that men s are located outside the body and women s are located inside the body. Theory remained influential until 17 th century in England. Female as Defective Theory: (Aristotle) Sperm is responsible for conception. Females resulted when development was disturbed. Animalculists: Little people are contained in the heads of sperm which grow when deposited in the womb. Ovists: Female ovaries contain tiny, already formed humans whose growth is activated by male sperm. 2. How Fertilization Takes Place Fertilization: Union of sperm and ovum fuse to produce a single new cell called a zygote; also called conception. Gametes: Sex cells. Zygote: One celled organism resulting from fertilization. Follicle: Small sac which holds ovum. Ovulation: Rupture of a mature follicle in ovary and expulsion of its ovum. Occurs about once every 28 days until menopause. Cilia: Small hair cells that sweep the ovum along the fallopian tube. Cervix: Opening of the uterus. B. Infertility Infertility: Inability to conceive after 12 months of trying. 1. Causes of Infertility Most common cause of infertility in men is low sperm count. Most common cause of infertility in women is blockage of the fallopian tubes. 2. Alternative Ways to Parenthood Assisted reproductive technology (ART) o In vitro fertilization (IVF): Fertilization done outside mother s body. o In vitro maturation (IVM): Harvesting of follicles before ovulation is complete. o Intracytoplasmic sperm injection (ISI):A single sperm is injected into the ovum. o Artificial insemination: Injection of sperm into a woman s cervix. o Artificial insemination by a donor: If man is infertile, a donor may be matched with prospective father for physical characteristics.
2 o Ovum transfer: A donor egg is fertilized in lab and transferred to mother s uterus. o Donor egg: When a woman is producing poor quality ova or has had her ovaries removed. o Blastocyst transfer: Fertilized ovum is kept in culture until the develops into a blastocyst and then implanted into mother s uterus. o Gamete intrafallopian transfer(gift) and Zygote intrafollopian transfer (ZIFT): Egg and sperm or fertilized egg is inserted into the fallopian tube. o Surrogate motherhood: A fertile woman is impregnated by the prospective father and agrees to give the baby to the couple. II. Mechanisms of Heredity Heredity: Inborn factors which are inherited from the biological parents that affect development. A. The Genetic Code Deoxyribonucleic acid (DNA): Chemical that carries inherited instructions for the formation and function of body cells. Bases: Chemical units which make up DNA (A, T, C, G) and form pairs. o adenine + thymie o cytosine + guanine The Genetic Code: Sequence of base parts within DNA that determine inherited characteristics. Chromosomes: Coils of DNA that carry genes. Genes: Small segments of DNA located in definite positions on particular chromosomes. Meiosis: Complex process of cell division in which each gamete (sperm or ovum) ends up with only 23 chromosomes-one from each pair. Monomorphic genes: The three quarters of the genes every child receives that are identical to the genes that every other child receives. Polymorphic genes: The other quarter of the genes which define each child as an individual. Mitosis: Process by which cells divide in half over and over again duplicating themselves. B. What Determines Sex? Autosomes: 22 pairs of chromosomes not related to sexual expression. Sex chromosomes: Pair of chromosomes that determine sex: XX in the normal female, XY in the normal male. SRY gene: Gene for maleness. Wnt-4 molecule: Controls femaleness. C. Patterns of Genetic Transmission 1. Dominant and Recessive Inheritance
3 Alleles: Paired genes (alike or different) that produce alternative expressions of a characteristic. Homozygous: Possessing two identical alleles for a trait. Heterozygous: Possessing different alleles for a trait. Dominant inheritance: Pattern of inheritance in which, when a child recieves contradictory alleles, only the dominant one is expressed. Recessive inheritance: Pattern of inheritance in which a child recieves identical recessive alleles resulting in expression of a nondominant trait. Polygenic Inheritance : Interaction of several genes. Mutations : Permanant alterations in genetic materials. Epigenesis: Mechanism that turns genes on or off and determines functions in the body. 2. Genotypes and Phenotypes: Multifactorial Transmission Phenotype: Observable characteristics of a person. Genotype: Genetic makeup of a person, containing both expressed and unexpressed characteristics. D. Genetic and Chromosomal Abnormalities 1. Dominant or Recessive Inheritance of Defects Incomplete Dominance: A trait that is not fully expressed. 2. Sex-Linked Inheritance of Defects Sex-linked inheritance: Pattern of inheritance in which certain characteristics carried on the X chromosome inherited from the mother are transmitted differently to her male and female offspring. Carrier: Parent does not have the disorder but can pass it on to children. 3. Genome Imprinting Genome imprinting: Differential expression of genetic traits depending on whether the trait has been inherited from the mother or the father. 4. Chromosomal Abnormalities Down syndrome: Chromosomal disorder characterized by moderate to severe mental retardation and a downward sloping skin fold at the inner corners of the eyes. Also called trisomy-21. E. Genetic Counseling and Testing Genetic counseling: Clinical service helps prospective parents assess their probable risk of having children with genetic or chromosomal defects. Karyotype: A chart of chromosomes sorted according to size and structure.
4 III. Nature and Nurture: Influences of Heredity and Environment A. Studying the Relative Influences of Heredity and Environment Behavioral genetics: Quantitative study of how much heredity and environment influence particular traits. 1. Measuring Heritability Heritability: Statistical estimate of how great a contribution heredity makes to individual differences in a specific trait at a certain time within a given population. Family studies: Measure the degree to which biological relatives share certain traits and whether the closeness of the family relationship is associated with the degree of similarity. Adoption studies: Look at similarities between adopted children and their adoptive families and also between adopted children and their biological families. Studies of twins: Compare pairs of monozygotic twins and same-sex dizygotic twins. Concordant: Term describing a statistical tendency to show the same trait. B. How Heredity and Environment Work Together Developmental System: A combination of constitutional, social, economic and cultural factors that shape development. 1. Reaction Range and Canalization Reaction range: Range of potential expressions of an inherited trait. Canalization: Limitation on variance of expression of certain inherited characteristics. 2. Genotype-Environment Interaction Genotype-environment interaction: Effects of similar environmental conditions on genetically different individuals. 3. Genotype-Environment Correlation Genotype-environmental correlation: Tendency of certain genetic and environmental influences to act in the same direction; may be passive, reactive (evocative) or active. o Passive correlations: Parents, who are genetically related to the child, provide the rearing environment for the child. Child does not control environment. o Reactive, or evocative, correlations: Child s genotype elicits certain types of physical and social environments. o Active correlations: Children seek out environments that they find companionable and stimulating. Niche-picking: Tendency of a person, especially after early childhood, to seek out environments compatible with his or her genotype. 4. What Makes Siblings So Different? The Nonshared Environment Nonshared environmental effects: The unique environment in which each child grows up, consisting of distinctive influences or influences that affect one child differently than another.
5 C. Some Characteristics Influenced by Heredity and Environment. 1. Physical and Physiological Traits Obesity: Extremely overweight in relation to age, sex, height, and body type; sometimes defined as having a body mass index (weight-to-height) at or above the 85 th or 95 th percentile of growth curves for children of the same age and sex. 2. Intelligence Heritability estimates: 50 to 60 percent for verbal abilities and 50 percent for spatial abilities. 3. Personality Temperament: A person s characteristic style of approaching and reacting to situations. Heritability estimates: On 5 major aspects of traits, 40 percent: on scales without measurement errors, 66 percent. 4. Psychopathology Schizophrenia: Mental disorder marked by loss of contact with reality; symptoms include hallucinations and delusions. May originate in a lack of a chemical called reelin. Autism: Pervasive developmental disorder of the brain, characterized by the lack of normal social interactions, impaired communication and imagination, and repetitive, obsessive behaviors.
Today s Topics. Cracking the Genetic Code. The Process of Genetic Transmission. The Process of Genetic Transmission. Genes
Today s Topics Mechanisms of Heredity Biology of Heredity Genetic Disorders Research Methods in Behavioral Genetics Gene x Environment Interactions The Process of Genetic Transmission Genes: segments of
More informationWhat is the relationship between genes and chromosomes? Is twinning genetic or can a person choose to have twins?
WHAT WILL YOU KNOW? What is the relationship between genes and chromosomes? Is twinning genetic or can a person choose to have twins? How could a person have the gene for something that is never apparent?
More informationLife-Span Development Thirteenth Edition
Life-Span Development Thirteenth Edition Natural Selection and Adaptive Behavior Natural Selection: an evolutionary process by which those individuals of a species that are best adapted are the ones that
More informationREVIEW SHEET: Units 11 Meiosis, Fertilization, & Genetics
REVIEW SHEET: Units 11 Meiosis, Fertilization, & Genetics ACP BIOLOGY Textbook Reading: Meiosis & Fertilization (Ch. 11.4, 14.1-2) and Classical Genetics (Ch. 11.1-3) Handouts:! NOTES Meiosis & Fertilization!
More informationREVIEW SHEET: Units 11 Meiosis, Fertilization, & Genetics
REVIEW SHEET: Units 11 Meiosis, Fertilization, & Genetics HONORS BIOLOGY Textbook Reading: Meiosis & Fertilization (Ch. 11.4, 14.1-2) and Classical Genetics (Ch. 11.1-3) Handouts:! NOTES Meiosis & Fertilization!
More informationHEREDITARY INFLUENCES ON DEVELOPMENT
HEREDITARY INFLUENCES ON DEVELOPMENT HEREDITARY INFLUENCES ON DEVELOPMENT Genotype: genes that one inherits Phenotype: how one s genotype is expressed in observable or measurable characteristics PRINCIPLES
More informationEthical and Policy Applications of Lifespan Development: Prenatal Sex Selection What Do You Think? (p. 40)
Lifespan Development Lives in Context 1st Edition Kuther Solutions Manual Full Download: https://testbanklive.com/download/lifespan-development-lives-in-context-1st-edition-kuther-solutions-manual/ Kuther,
More informationReproductive Technology, Genetic Testing, and Gene Therapy
Michael Cummings Chapter 16 Reproductive Technology, Genetic Testing, and Gene Therapy David Reisman University of South Carolina 16.1 Infertility Is a Common Problem In the US, about 13% of all couples
More informationChapter 5 INTERACTIONS OF GENES AND THE ENVIRONMENT
Chapter 5 INTERACTIONS OF GENES AND THE ENVIRONMENT Chapter Summary Up to this point, the traits you have been studying have all been controlled by one pair of genes. However, many traits, including some
More informationReproduction Review YOU ARE EXPECTED TO KNOW THE MEANING OF ALL THE FOLLOWING TERMS:
Reproduction Review YOU ARE EXPECTED TO KNOW THE MEANING OF ALL THE FOLLOWING TERMS: CHROMOSOME GENE DNA TRAIT HEREDITY INTERPHASE MITOSIS CYTOKINESIS ASEXUAL BINARY FISSION CELL CYCLE GENETIC DIVERSITY
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 information10. Crossing over occurs A. during mitosis. B. during meiosis. C. only in the ovum. D. during fertilization. 11. The process by which equivalent
ch2 Student: 1. The inherited material an infant receives from its parents is referred to as one's A. ancestral characteristics. B. genotype. C. physical and behavioural characteristics. D. phenotype.
More informationPrinciples of Genetics Biology 204 Marilyn M. Shannon, M.A.
Principles of Genetics Biology 204 Marilyn M. Shannon, M.A. Introduction Nature versus nurture is a topic often informally discussed. Are world-class musicians that good because they inherited the right
More information12 Biology Revision Notes - Term 3
QCE Biology Year 2016 Mark 0.00 Pages 21 Published Jan 24, 2017 Revision Notes - Term 3 By Sophie (1 ATAR) Powered by TCPDF (www.tcpdf.org) Your notes author, Sophie. Sophie achieved an ATAR of 1 in 2016
More informationInteraction of Genes and the Environment
Some Traits Are Controlled by Two or More Genes! Phenotypes can be discontinuous or continuous Interaction of Genes and the Environment Chapter 5! Discontinuous variation Phenotypes that fall into two
More information2. Circle the genotypes in the table that are homozygous. Explain how the two different homozygous genotypes result in different phenotypes.
Genetics Supplement (These supplementary modules, a Genetics Student Handout, and Teacher Preparation Notes with background information are available at http://serendip.brynmawr.edu/sci_edu/waldron/#genetics.
More informationNormal enzyme makes melanin (dark pigment in skin and hair) Defective enzyme does not make melanin
Genetics Supplement (These supplementary modules, a Genetics Student Handout, and Teacher Preparation Notes with suggestions for implementation are available at http://serendip.brynmawr.edu/sci_edu/waldron/#genetics.
More informationHuman Chromosomes. Lesson Overview. Lesson Overview Human Chromosomes
Lesson Overview 14.1 THINK ABOUT IT If you had to pick an ideal organism for the study of genetics, would you choose one that produced lots of offspring, was easy to grow in the lab, and had a short life
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 informationSemester 2- Unit 2: Inheritance
Semester 2- Unit 2: Inheritance heredity -characteristics passed from parent to offspring genetics -the scientific study of heredity trait - a specific characteristic of an individual genes -factors passed
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 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 informationDownloaded from
Chapter-5 Principles of Inheritance and Variations Chapter No. Chapter Name Concepts Degree of imp. Ref. NCERT text book.: page nos Common errors 5 Principles of inheritance and variations 1. Mendel s
More information9/25/ Some traits are controlled by a single gene. Selective Breeding: Observing Heredity
Chapter 7 Learning Outcomes Explain the concept of a single-gene trait Describe Mendel s contributions to the field of genetics Be able to define the terms gene, allele, dominant, recessive, homozygous,
More informationChapter 2--Heredity and Conception
1. Heredity is defined as: Chapter 2--Heredity and Conception Student: A. one's nature, and is based on biological transmission of traits and characteristics B. the rod shaped structures found in cells
More informationIntroduction to Genetics and Heredity
Introduction to Genetics and Heredity Although these dogs have similar characteristics they are each unique! I. Early Ideas About Heredity A. The Theory of Blending Inheritance Each parent contributes
More informationChapter 1 Heredity. Prepared by: GOAD s Team
Chapter 1 Heredity Prepared by: GOAD s Team IMPORTANT VOCABULARY WORDS Traits Character Genes Allele Genotype homozygote heterozygote Dominant recessive phenotype WHAT IS HEREDITY? HEREDITY - is a passing
More informationGenetics and Diversity Punnett Squares
Genetics and Diversity Punnett Squares 1 OUTCOME QUESTION(S): S1-1-12: How are the features of the parents inherited to create unique offspring? Vocabulary & Concepts Allele Dominant Recessive Genotype
More informationTreating Infertility
Treating Infertility WOMENCARE A Healthy Woman is a Powerful Woman (407) 898-1500 About 10% of couples in the United States are infertile. Infertility is a condition in which a woman has not been able
More informationAssisted Reproductive Technologies
Assisted Reproductive Technologies Textbook pages 224 231 Section 6.3 Summary Before You Read What do you think the phrase test-tube baby refers to? Write your ideas on the lines below. Mark the Text Check
More informationPSYC& 200: Study Guide Worksheet 3 Genes, Heredity and Environment
You should use information from classroom activities and lecture, from the second chapter of your text, from psychological dictionaries and from your own knowledge from having taken General Psychology
More informationInteraction of Genes and the Environment
Some Traits Are Controlled by Two or More Genes! Phenotypes can be discontinuous or continuous Interaction of Genes and the Environment Chapter 5! Discontinuous variation Phenotypes that fall into two
More informationLab Activity Report: Mendelian Genetics - Genetic Disorders
Name Date Period Lab Activity Report: Mendelian Genetics - Genetic Disorders Background: Sometimes genetic disorders are caused by mutations to normal genes. When the mutation has been in the population
More informationMendelian Genetics. Gregor Mendel. Father of modern genetics
Mendelian Genetics Gregor Mendel Father of modern genetics Objectives I can compare and contrast mitosis & meiosis. I can properly use the genetic vocabulary presented. I can differentiate and gather data
More informationGenes and Inheritance (11-12)
Genes and Inheritance (11-12) You are a unique combination of your two parents We all have two copies of each gene (one maternal and one paternal) Gametes produced via meiosis contain only one copy of
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 1 by Drs. Scott Poethig, Ingrid Waldron, and. Jennifer Doherty, Department of Biology, University of Pennsylvania, Copyright, 2011
Genetics 1 by Drs. Scott Poethig, Ingrid Waldron, and. Jennifer Doherty, Department of Biology, University of Pennsylvania, Copyright, 2011 We all know that children tend to resemble their parents in appearance.
More informationUnit 2 Reproduction & Genetics Grade 9 Science SCI 10F Mr. Morris
Unit 2 Reproduction & Genetics Grade 9 Science SCI 10F Mr. Morris This booklet belongs to: Lesson 1 Cells and Organelles Lesson 1 SCI10F A short list of Organelles (little organs): Nucleus Cytoplasm Chromosome
More informationPatterns of Inheritance
Patterns of Inheritance Mendel the monk studied inheritance keys to his success: he picked pea plants he focused on easily categorized traits he used true-breeding populations parents always produced offspring
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 informationChapter 7 DEVELOPMENT AND SEX DETERMINATION
Chapter 7 DEVELOPMENT AND SEX DETERMINATION Chapter Summary The male and female reproductive systems produce the sperm and eggs, and promote their meeting and fusion, which results in a fertilized egg.
More informationGenetic Variation Junior Science
2018 Version Genetic Variation Junior Science http://img.publishthis.com/images/bookmarkimages/2015/05/d/5/c/d5cf017fb4f7e46e1c21b874472ea7d1_bookmarkimage_620x480_xlarge_original_1.jpg Sexual Reproduction
More informationChapter 02: Test Bank
Biological and Environmental Foundations Multiple Choice 1. In each human cell, a nucleus contains chromosomes. a. 12 b. 12 matching pairs of c. 23 d. 23 matching pairs of Learning Objective: 2.1 Answer
More informationDevelopmental Psychology 2017
Developmental Psychology 2017 Table of Contents Lecture Notes pp. 2-29 Theorists, Theories & Evaluation pp. 29 36 Revision Questions (for all lectures) pp. 36-54 Lecture Notes Intro to Development Development
More informationSemester 2- Unit 2: Inheritance
Semester 2- Unit 2: Inheritance heredity -characteristics passed from parent to offspring genetics -the scientific study of heredity trait - a specific characteristic of an individual genes -factors passed
More informationChapter 1 : Genetics 101
Chapter 1 : Genetics 101 Understanding the underlying concepts of human genetics and the role of genes, behavior, and the environment will be important to appropriately collecting and applying genetic
More informationThe Inheritance of Complex Traits
The Inheritance of Complex Traits Differences Among Siblings Is due to both Genetic and Environmental Factors VIDEO: Designer Babies Traits Controlled by Two or More Genes Many phenotypes are influenced
More informationInheritance. Children inherit traits from both parents.
Have you ever been told you have your mother s eyes or your father s smile? Have you ever noticed you share your grandfather s eye color or possibly your grandmother s curly hair, and yet your parents
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 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 informationMeiotic Mistakes and Abnormalities Learning Outcomes
Meiotic Mistakes and Abnormalities Learning Outcomes 5.6 Explain how nondisjunction can result in whole chromosomal abnormalities. (Module 5.10) 5.7 Describe the inheritance patterns for strict dominant
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 informationInfertility F REQUENTLY A SKED Q UESTIONS. Q: Is infertility a common problem?
Infertility (female factors). In another one third of cases, infertility is due to the man (male factors). The remaining cases are caused by a mixture of male and female factors or by unknown factors.
More informationGENETICS NOTES. Chapters 12, 13, 14, 15 16
GENETICS NOTES Chapters 12, 13, 14, 15 16 DNA contains the genetic code for the production of PROTEINS. A gene is a segment of DNA, which consists of enough bases to code for many different proteins. The
More informationMendelian Genetics. Activity. Part I: Introduction. Instructions
Activity Part I: Introduction Some of your traits are inherited and cannot be changed, while others can be influenced by the environment around you. There has been ongoing research in the causes of cancer.
More informationHow do genes influence our characteristics?
Genetics Supplement 1 This activity will focus on the question: How do genes contribute to the similarities and differences between parents and their children? This question can be divided into two parts:
More information3. What law of heredity explains that traits, like texture and color, are inherited independently of each other?
Section 2: Genetics Chapter 11 pg. 308-329 Part 1: Refer to the table of pea plant traits on the right. Then complete the table on the left by filling in the missing information for each cross. 6. What
More informationFull file at
Name Chapter 2 - Quick Quiz 1 1. This is the basic unit of heritance that may be several hundred to several million base pairs long. a. chromosome c. DNA b. gene d. nucleotide 2. A photograph of a cell
More informationUNIT 1 GENETIC PROCESSES WHAT IS GENETICS? GENETICS VIEWPOINTS THROUGH TIME
G01 Introduction to Mendelian Genetics.notebook UNIT 1 GENETIC PROCESSES INTRODUCTION TO GENETICS Why do we not all look alike? What is it about people that make one person look different from another?
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 informationB1 Revision You and Your Genes. You and Your Genes (B1) Revision for Exam
B1 Revision You and Your Genes You and Your Genes (B1) Revision for Exam What makes us all different? Organisms inherit information from their parents. This controls how they develop, so children look
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 informationGenetics 1. How do genes influence our characteristics?
Genetics 1 This activity will focus on the question: How do genes contribute to the similarities and differences between parents and their children? This question can be divided into two parts: How do
More informationMitosis and Meiosis. See Mitosis and Meiosis on the class web page
Mitosis and Meiosis Mitosis and Cellular Reproduction. A cell s hereditary material (DNA) is located on chromosomes in the cell s nucleus. In the process called mitosis, a cell s hereditary material is
More informationAS90163 Biology Describe the transfer of genetic information Part 1 - DNA structure & Cell division
AS90163 Biology Describe the transfer of genetic information Part 1 - DNA structure & Cell division This achievement standard involves the description of the transfer of genetic information. Achievement
More informationGenetics and Heredity Notes
Genetics and Heredity Notes I. Introduction A. It was known for 1000s of years that traits were inherited but scientists were unsure about the laws that governed this inheritance. B. Gregor Mendel (1822-1884)
More informationNCEA Science 1.9 Genetic Variation AS 90948
NCEA Science 1.9 Genetic Variation AS 90948 Achievement Criteria Biological ideas relating to genetic variation are limited to concepts and processes connected with: the continuity of life based on the
More informationMendelian Genetics. KEY CONCEPT Mendel s research showed that traits are inherited as discrete units.
KEY CONCEPT Mendel s research showed that traits are inherited as discrete units. Mendel laid the groundwork for genetics. Traits are distinguishing characteristics that are inherited. Genetics is the
More informationGenetics. The study of heredity. Father of Genetics: Gregor Mendel (mid 1800 s) Developed set of laws that explain how heredity works
Genetics The study of heredity Father of Genetics: Gregor Mendel (mid 1800 s) Developed set of laws that explain how heredity works Father of Genetics: Gregor Mendel original pea plant (input) offspring
More informationGenetics. the of an organism. The traits of that organism can then be passed on to, on
Genetics DNA contains the genetic code for the production of. A gene is a segment of DNA, which consists of enough bases to code for many different proteins. The specific proteins produced by a gene determine
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 informationGenetic basis of inheritance and variation. Dr. Amjad Mahasneh. Jordan University of Science and Technology
Genetic basis of inheritance and variation Dr. Amjad Mahasneh Jordan University of Science and Technology Segment 1 Hello and welcome everyone. My name is Amjad Mahasneh. I teach molecular biology at Jordan
More informationREPRODUCTION AND GENETICS
REPRODUCTION AND GENETICS TEKS 7.14A Define heredity as the passage of genetic instructions from one generation to the next generation 7.14B Compare the results of uniform or diverse offspring from sexual
More informationGENETICS PREDICTING HEREDITY
GENETICS PREDICTING HEREDITY INTRODUCTION TO GENETICS Genetics is the scientific study of heredity Heredity is essentially the study of how traits are passed from parents to their offspring. GREGOR MENDEL
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 informationIncreased Length of Awareness of Assisted Reproductive Technologies Fosters Positive Attitudes and Acceptance among Women
www.ijfs.ir Supplementary Information for Increased Length of Awareness of Assisted Reproductive Technologies Fosters Positive Attitudes and Acceptance among Women Chelsea Fortin, M.D. 1, 2 *, Susanne
More informationBIOL 109L Laboratory five Fall 2018
BIOL 109L Laboratory five Fall 2018 Understanding Genetics and Inheritance Student full name: Introduction: Chromosomes are like a set of books that provide instructions for building and operating an individual.
More informationChapter 2 - Heredity and Environment - Quick Quiz 1
Name questions: Chapter 2 - Heredity and Environment - Quick Quiz 1 1. If you were to compare the DNA of any two unrelated people, about what percent of their DNA would be identical? a. 25% b. 50% c. 99.9%
More informationUNIT IX: GENETIC DISORDERS
UNIT IX: GENETIC DISORDERS Younas Masih Lecturer New Life College Of Nursing Karachi 3/4/2016 1 Objectives By the end of this session the Learners will be able to, 1. Know the basic terms related genetics
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 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 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 4 PEDIGREE ANALYSIS IN HUMAN GENETICS
Chapter 4 PEDIGREE ANALYSIS IN HUMAN GENETICS Chapter Summary In order to study the transmission of human genetic traits to the next generation, a different method of operation had to be adopted. Instead
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 informationLesson Overview. Human Chromosomes. Lesson Overview. Human Chromosomes
Lesson Overview Karyotypes A genome is the full set of genetic information that an organism carries in its DNA. A study of any genome starts with chromosomes, the bundles of DNA and protein found in the
More informationTEST NAME:review TEST ID: GRADE:07 Seventh Grade SUBJECT:Life and Physical Sciences TEST CATEGORY: My Classroom
TEST NAME:review TEST ID:1070005 GRADE:07 Seventh Grade SUBJECT:Life and Physical Sciences TEST CATEGORY: My Classroom review Page 1 of 18 Student: Class: Date: 1. There are four blood types: A, B, AB,
More informationChapter 2 Heredity and Conception
Heredity and Conception MULTIPLE CHOICE 1. Heredity is defined as a. one s nature, and is based upon biological transmission of traits and characteristics. b. the spiral shaped structures found in cells.
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 informationGregor Mendel Father of Genetics
Genetics and Mendel Gregor Mendel Father of Genetics Gregor Mendel First person to trace characteristics of living things Augustinian Monk Lived and worked in an Austrian monastery in the mid-1800s Parents
More informationWhat s it all about?
What s it all about? Nature = Behaviours, motivation, emotions, etc, that are essentially biological and that we were born with (inherited). Nurture = Behaviours, etc, that are essentially learnt and therefore
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 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: CH9 Patterns of Inheritance
Genetics: CH9 Patterns of Inheritance o o Lecture note Directions Highlight Key information (10-30% of most slides) My Thoughts: Questions, comments, additional information, connections to prior knowledge,
More informationQuestion 2: Which one of the following is the phenotypic monohybrid ratio in F2 generation? (a) 3:1 (b) 1:2:1 (c) 2:2 (d) 1:3 Solution 2: (a) 3 : 1
Class X Genetics Biology A. MULTIPLE CHOICE TYPE: (Select the most appropriate option) Which one of the following has the smallest number of chromosomes? (a) Onion (b) Mouse (c) Monkey (d) Ascaris (d)
More informationCopyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 6 Patterns of Inheritance
Chapter 6 Patterns of Inheritance Genetics Explains and Predicts Inheritance Patterns Genetics can explain how these poodles look different. Section 10.1 Genetics Explains and Predicts Inheritance Patterns
More informationSexual Reproduction. Chapter 3 Sexual Reproduction BC Science Probe 9 pages
Sexual Reproduction Chapter 3 Sexual Reproduction BC Science Probe 9 pages 72-105 Why Sex? Textbook Read pages 74 77 Sexual Reproduction Is reproduction involving two parents Each parent contributes equal
More informationWhat are the main functions of the male reproductive system? 1. Produce sperm 2. Deposit sperm into the female 3. Provide a pathway for the removal
What are the main functions of the male reproductive system? 1. Produce sperm 2. Deposit sperm into the female 3. Provide a pathway for the removal of urine Where is sperm produced? -In the 2 testes What
More informationMendelian Genetics. 7.3 Gene Linkage and Mapping Genes can be mapped to specific locations on chromosomes.
7 Extending CHAPTER Mendelian Genetics GETTING READY TO LEARN Preview Key Concepts 7.1 Chromosomes and Phenotype The chromosomes on which genes are located can affect the expression of traits. 7.2 Complex
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 informationHuman Genetics (Learning Objectives)
Human Genetics (Learning Objectives) Recognize Mendel s contribution to the field of genetics. Review what you know about a karyotype: autosomes and sex chromosomes. Understand and define the terms: characteristic,
More information