The Inheritance of Sickle Cell Anemia Involves Incomplete Dominance

question 1

Multiple Choice

The inheritance of sickle cell anemia involves incomplete dominance. (S determines normal hemoglobin, it is dominant; s is the sickle cell gene) . A homozygous recessive person has sickle cell anemia. A heterozygous person has the sickle cell trait. If parental genotypes are SS and ss, what is the probability of offspring having the sickle cell trait?

• A) 50%; half are Ss
• B) 25%; one quarter are Ss
• C) 100%; all are Ss

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Definitions:

Proliferative Phase

The stage of wound healing or tissue repair where cells multiply and spread to replace lost or damaged tissue, followed by collagen formation and tissue strengthening.

Correlation Coefficient

A statistical measure that describes the extent to which two variables are linearly related.

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