Patterns of Inheritance Review Game Page 1

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1 Patterns of Inheritance Review Game Page 1 1 The tendency of alleles that are located close together on a chromosome to be inherited together during meiosis is called epistasis. codominance. crossing over. genetic linkage. 2 Gametes normally have one set of chromosomes. two alleles for each gene. homologous pairs of chromosomes. the same number of chromosomes as any other cell in the body. 3 ompared to somatic cells during the G2 phase of the cell cycle, the gametes produced through meiosis have the. half; amount of N twice; amount of N half; number of chromosomes one-fourth; number of chromosomes 4 Which of the following events occurs in mitosis but NOT in meiosis? pairing of homologous chromosomes separation of sister chromatids in a diploid cell production of daughter cells through cytokinesis pairs of homologous chromosomes separate and move toward opposite poles 5 The exchange of pieces of homologous chromosomes is known as "crossing over." ased on your understanding of crossing over, what do you predict will happen if two genes are close together on a chromosome? rossing over will never separate the alleles for the two genes. rossing over will definitely separate the alleles for the two genes. The alleles for the two genes are more likely to stay together after crossing over than the alleles for two genes that are far apart. The alleles for the two genes are less likely to stay together after crossing over than the alleles for two genes that are far apart.

2 Patterns of Inheritance Review Game Page 2 6 Harry and Sue have 3 beautiful daughters. What is the probability that their next child will be a boy? 0% 25% 50% 100% 7 Freckles (F) are dominant to no freckles (f). ill and Joan have 8 children, 6 with freckles and 2 without freckles. What are ill and Joan's most likely genotypes? FF and ff Ff and Ff ff and ff freckled 8 In fruit flies, gray body () is dominant over black body (b). Two gray flies produced 158 gray flies and 49 black flies. What are the most likely genotypes of the parents? b and b and bb b and bb bb and bb 9 onsider the cross illustrated by this Punnett square. What are the most likely genotypes of the parents? SS x ssbb Ssb x ssbb SS x Ssb Ssb x Ssb

3 Patterns of Inheritance Review Game Page 3 10 oat color in Labrador retrievers is an example of epistasis, in which a single trait is influenced by two separate genes. =black melanin, b=brown melanin E=full deposition, e=reduced deposition If both of this dog's parents were heterozygous for both genes (bee x bee), what was the probability of getting this dog's specific genotype? 1/16 3/16 9/16 16/16 11 What is the normal breakdown of sex chromosomes in a human male? Two X chromosomes Two Y chromosomes n X and a Y chromosome Three or more X chromosomes 12 In humans, brown eyes () are dominant over blue eyes (b). brown-eyed man has a blue-eyed daughter. What is his phenotype? bb b brown-eyed 13 Which step in our "Penny Genetics" lab simulated the process of fertilization? tossing a penny to see which side landed up inferring the offspring's phenotype based on the genotype combining the results of the two tossed pennies to determine the offspring's genotype counting and recording the number of offspring of each genotype after completing a total of 100 coin flips

4 Patterns of Inheritance Review Game Page 4 14 rabbit that is homozygous for both black fur and short hair (SS) will produce what offspring with a rabbit that has white fur and long hair (bbss)? SS bss ss bss 15 Freckles (F) and a widow's peak (W) are dominant human traits. John and Sarah have both, but their son asey has neither. What are John and Sarah's genotypes? Ff and Ww FfWw and FfWW FfWw and FfWw FFWW and ffww 16 Skin color and hair color in humans are influenced by the combined effects of multiple genes. This is called epistasis. codominance. polygenic inheritance. intermediate inheritance. 17 Mendel found that the two alleles for a trait separate during gamete formation and end up in different gametes. This became known as the. Law of ominance Law of Segregation Law of Genetic Linkage Law of Independent ssortment 18 The O blood groups found in humans provide an example of multiple alleles. polygenic inheritance. intermediate inheritance. both multiple alleles and codominance. 19 Jackie and Jill are identical twins, with an identical genetic makeup. Jackie, however, weighs 10 pounds more than Jill. This is possible because the environment can influence genotypes. influence phenotypes. influence birth order. make genes intermediately dominant.

5 Patterns of Inheritance Review Game Page 5 20 ased on the evidence provided, the trait shown in this pedigree is most likely a autosomal dominant trait. autosomal recessive trait. sex-linked dominant trait. sex-linked recessive trait.

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