4.40 Two children. Each of us has an ABO blood type, which describes whether two characteristic, called...

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4.40 Two children.

Each of us has an ABOblood type, which describes whether two characteristic, called Aand B, are present. Every one of us has two blood type alleles(gene forms), one inherited from our mother and one from ourfather. Each of these alleles can be A, B, or O. Which two weinherit determines our blood type. Here is a table that shows whatour blood type is for each combination of two inheritedalleles:

Alleles inheritedBlood type
A and AA
A and BAB
A and OA
B and BB
B and OB
O and OO

We inherit each of aparent's two alleles with probability 0.5. We inherit independentlyfrom our mother and father.

Samantha has alleles Band O. Dylan has alleles A and B. They have two children.

What is theprobability that both children have blood type A? (report to 4decimal places as a proportion) ________________________

What is theprobability that both children will have the same blood type?(report to 3 decimal places as a proportion) _________________

Answer & Explanation Solved by verified expert
3.6 Ratings (328 Votes)
answer given that Samantha has alleles B and O and Dylan has alleles A and B and we can observe that getting B and O and are mutually disjoint events also getting A and B also mutually disjoint events 1 probability of the both children having blood type A probability of 1st child having blood type Aprobability of 2nd child    See Answer
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