There Is a Color Pattern Inherited in Certain Mice in Which

question 66

Short Answer

There is a color pattern inherited in certain mice in which agouti (gray) is homozygous, and yellow is heterozygous. A cross of two yellows produces two yellows for each agouti. A second gene, C/c , controls the expression of the color genes: C is the dominant allele that allows color to be expressed, and the recessive gene in the homozygous condition ( cc ) prevents any color from being expressed.
(a) Give the genotypes of a white parent crossed with a yellow parent that produces 1/2 white, 1/3 yellow, 1/6 agouti offspring.
(b) Give the results of the cross of two forms heterozygous for each gene.
(c) Can you develop a pure-breed population for any of the colors?

---

Definitions:

OSHA

The Occupational Safety and Health Administration (OSHA) is an agency of the United States Department of Labor that ensures safe and healthful working conditions by setting and enforcing standards and by providing training, outreach, education, and assistance.

Employer

An individual or organization that hires and pays individuals for their labor or services.

FICA

Federal Insurance Contributions Act; a U.S. law that requires a payroll tax on both employees and employers to fund Social Security and Medicare.

Social Security

A government program providing economic assistance to people with an inadequate or no income.