Use the following information to answer the questions below. A woman and her spo

Question

Use the following information to answer the questions below. A woman and her spouse both show the phenotype for normal pigmentation, but both have one parent who was an albino. Albanism is an autosomal (not sex linked) recessive trait!
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47. What is the probability that their first child will be an albino?
A) 100% B) 75% C) 50% D) 25% E) 0%
48. If their first two children have normal pigmentation, what is the probability that their third child will be an albino?
A) 100% B) 75% C) 50% D) 25% E) 0%
49. What is the probability that their fourth child will have a homozygous genotype?
A) 100% B) 75% C) 50% D) 25% E) 0%
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50. A recessive allele is
A. expressed only in the absence of a dominant allele B. represented by lowercase (a, b for example) letters
C. expressed in a heterozygous condition D. Both A & B E. All of the above

Explanation / Answer

47.C 48.B 49.B 50.D

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