com/courses/1228108/quizzes/1231166 Question 5 0/1 pts Sickle cell anemia is a r

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com/courses/1228108/quizzes/1231166 Question 5 0/1 pts Sickle cell anemia is a recessive disease in humans. Two carriers of the sickle cell allele marry and have three children. What is the probability that at least one child will have sickle cell anemia? Hint: An easier way to approach this problem is to first think about the probability of NOT having any affected child.) 63/64 3/4 Correct Answer37/64 7/8 1/2 1/4 1/1 pts Question 6 If an individual has 10 gene pairs, how many different gametes can be formed if four of the gene pairs are homozygous and the remaining six gene pairs are heterozygous? 12 32

Explanation / Answer

Answer:

5).

Ss x Ss---Parents

S_ = Normal = 3/4

ss = affected = ¼

The probability of unaffected = ¾

Proportion of completely normal children = (3/4)^3 = 27/64

The probability of al least one affected children = 1-27/64 = 37/64

6).

Number of gametes types = 2 ^ no. of heterozygotes

Heterozygotes in the given data = 6

Number of different gametes = 2^6 = 64

Therefore, 64 types of different gametes will be produced.

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