A man with Huntington disease (he is heterozygousHD HD+) and a normal woman have two children.a. What is the probability that only the second childhas the disease?b. What is the probability that only one of the childrenhas the disease?c. What is the probability that none of the childrenhas the disease?d. Answer (a) through (c) assuming that the couplehad 10 children.e. What is the probability that 4 of the 10 children inthe family in (d) have the disease?

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