A Woman Heterozygous for Color Blindness (An X-Linked Recessive Allele)

question 19

Multiple Choice

A woman heterozygous for color blindness (an X-linked recessive allele) marries a man with normal color vision. What is the probability that their first child will be color-blind?

• A) 25 percent
• B) 50 percent
• C) 75 percent
• D) 100 percent
• E) 0 percent

---

Definitions:

Economizing Problem

The issue of limited resources to meet unlimited wants, necessitating choices and prioritizations in the use of resources.

Limited Resources

The finite availability of inputs or resources (labor, capital, land) that can be used for the production of goods and services.

Unlimited Wants

The economic concept that human desires and needs are constant and infinite, whereas the resources to fulfill them are limited.

Best Use

Optimal allocation or application of resources to maximize efficiency or value.