Exam 12: Inheritance, Genes, and Chromosomes

Use the following to answer questions: Agouti is a type of coat color pattern in mouse that cannot be expressed in albinos (white mice). A non-albino, agouti mouse that is heterozygous at the albino (A) and agouti (B) loci (AaBb) is mated to an albino mouse that is heterozygous at the agouti locus (aaBb). Non-albino mice without the dominant agouti allele (AAbb and Aabb) are black. -What percent of the progeny do you expect to be agouti?

It is predictable that half of the human babies born will be male and half will be female because

In humans, a widow's peak is caused by a dominant allele W, and a continuous hairline is caused by a recessive allele w. Short fingers are caused by a dominant allele S, and long fingers are caused by a recessive allele s. Suppose a woman with a continuous hairline and short fingers and a man with a widow's peak and long fingers have three children. One child has short fingers and a widow's peak, one has long fingers and a widow's peak, and one has long fingers and a continuous hairline. What are the genotypes of the parents?

Which of the following observations support the idea that the gene controlling maleness is located on the Y chromosome?

In Kölreuter's studies, reciprocal crosses

When a dihybrid black, straight-winged fly is crossed to a double-recessive brown, curly-winged fly, the frequency at which black curly-winged and brown straight-winged flies are seen in the progeny is called the _______ frequency.

Use the following to answer questions: Two different groups of imaginary schmoos live in geographically separated locations and rarely interbreed. On one occasion, a big-footed white schmoo does mate with a small-footed brown schmoo. Three offspring result: one big-footed brown schmoo and two small-footed brown schmoos. -Which statement about the inheritance of color in schmoos is most likely to be correct?

Mendel's research was rediscovered in the published studies of

Humans have _______ genes in their mitochondria.

The phenotype of an individual