Sickle cell anemia is a recessive trait in humans. In a cross between a father who has sickle cell anemia and a mother who is heterozygous for the sickle cell allele, what is the probability that all of their first three children will be unaffected?

A) 1/4
B) 1/2
C) none
D) 1/8
E) 1/16


D) 1/8

Biology & Microbiology

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A. circular B. increasing C. a lattice D. one way E. lossless

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Which of the following is the best description of a virus?

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