California State University, Fullerton » Biology » Biology 251 - Genetics » Spring 2021

Question #1

In a cross of a fruit fly with white-eyed females of genotype XwXw and red-eyed males of genotype X+Y.

A. all female offspring have white eyes.

B. all female offspring have red eyes.

C. female offspring may have red or white eyes.

Question #2

A disorder on the Y chromosome would appear in a pedigree as:

A. transmitting to all offspring in all generations.

B. transmitting to male offspring only and skipping generations.

C. transmitting to male and female offspring and skipping generations.

D. transmitting to all male offspring in all generations.

Question #3

A hallmark of all recessive allele transmission in a pedigree is:

A. appearance of the recessive phenotype in all offspring of individuals carrying the allele.

B. appearance of the recessive phenotype only in females.

C. appearance of the recessive phenotype only in males.

D. skipping of generations for the recessive phenotype.

Question #4

The term maternal inheritance refers to:

A. inheritance of an X chromosome.

B. inheritance of the mitochondrial genome.

C. inheritance of a haploid genome from a female gamete.