Final Exam 2014

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In humans, a characteristic of a recessive, sex-linked trait such as hemophilia is that it

In cats, the gene for short hair (A) is dominant over the gene for long hair (a). A short-haired male cat is mated with a long-haired female, and four kittens are produced, two short haired and two longhaired. What are the genotypes of the parents?

According to Darwin's theory of natural selection, the individuals that tend to survive are those that have

Why don't all children have the same eye color?

In pea plants, teh gene for tallness (T) is dominant over the gene for shortness(t). If 100% of the F1 generation oppspring are heterozygous tall, what were the possible genotypes of the parents?

Which individuals woudl have the most similar DNA sequences?

Color blindness is a sex-linked trait carried on the X-chromosome. If a boy is born color-blind, what would have to be true?

If a man has type B blood and his sister has type A blood, which combination represents the genotypes of their parents?