2. In humans, widow's peak (W) is dominant over a continuous hairline (w), and short fingers (F) are dominant over long fingers (f). Two individuals with widow's peak and short fingers have a child with continuous hairline and long fingers. Determine the genotype of the parents.

2. My mom is colorblind, which is an X-linked recessive disorder. My dad has normal color vision. I have normal color vision, as does my husband. What are the chances that my son, Liam, and my daughter, Sloane, are colorblind? There are two Punnett square provided below, one for each generation.

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5. A husband and wife have typical vision, although both of their fathers are red-green colorblind (an X-linked recessive trait). From this information, determine the appropriate symbols for the wild-type and color-blind alleles and write the genotypes of the husband and wife. a. b. What is the probability that the couple will have a son with typical vision? C. What is the probability that the couple will have a daughter with typical vision? d. What is the probability that the couple will have a son with colorblindness? e. What is the probabilityt the the couple will have a daughter with colorblindness?

16. A woman who is type O marries a man who is heterozygous for type A. What are the chances that they will have a type O baby? Tracking two traits. Now it's time to track two traits at the same time.

7. Hereditary ichthyosis in humans is a sex-linked trait. If a normal male and a carrier female produce offspring, what will be the phenotypic ratios of: Normal females to scaly females? Normal males to scaly males? 8. Raedwald is color blind. His four sisters and his parents all have normal color vision. Who passed this condition on to Raedwald, and what can be said for certain about the genotypes of his maternal and paternal grandparents? wwwwM

1. In mice, black fur (B) is dominant over brown fur (b). Breeding a brown mouse and a homozygous black mouse produces all black offspring. a. What is the genotype of the gametes produced by the brown-furred parent? b. What genotype is the brown-furred parent? . c. What genotype is the black-furred parent? . d. What genotype is the black-furred offspring?. e. If two F, mice are bred with one another, what phenotype will the F, offspring be, and in what proportion? phenotype. proportion.

17. Three recessive traits in aardwolf (a real animal) are stripe-less (s), dwarf (d), and fluffy mane (f). A stripe-less and fluffy female aardwolf mates with a dwarf male aardwolf to produce an F1 that is all WT (has stripes, normal size, and non-fluffy mane). When an F1 is test crossed to a fully recessive aardwolf, the following F2 are produced: Stripe-less, fluffy, normal sized 89 Striped, non-fluffy, dwarf 92 Stripe-less, non-fluffy, dwarf 1 Striped, fluffy, normal sized 2 11 13 19 20

23. In horses, black color is influenced by the dominant allele B and chestnut coat color is influenced by the recessive allele b. Trotting gait is due to a dominant allele T, pacing gait to the recessive allele t. A black trotter who is homozygous for both traits is crossed to a chestnut pacer. a. What are the genotypes of the Pgeneration? b. What will be the genotype and phenotype of the F1 generation? c. Draw a punnett square showing the cross of two F1 generation horses. What is the phenotypic ratio of all the combinations?