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Question

One way to classify humans is by their blood type. There are over two dozen ways to group blood types. One of them is by the presence of the D antigen on the surface of blood cells. If an individual expresses the D antigen, they are referred to as Rh positive. This is controlled by an autosomal dominant allele. In a given town, 16% of the population is considered Rh negative.
If this town's high school has 2,000 students, how many would you expect to have the homozygous recessive genotype?

A
160
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B
320
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C
480
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D
720
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Solution

The correct option is C 320
Autosomal dominant allele:- The first allele is dominant and the second allele is recessive.
total number of town's high school- 2000. then we have to calculate the 16% of the 2000 is 320.
So, the correct answer is "320".

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