Hemophilia is an x-linked recessive trait. In a population of 2000 people, 4 women have hemophilia, 30...

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Hemophilia is an x-linked recessive trait. In a population of 2000 people, 4 women have hemophilia, 30...

Hemophilia is an x-linked recessive trait. In a population of 2000 people, 4 women have hemophilia, 30 men have hemophilia, and 80 are carriers of the disorder. What is the frequency of the hemophilia allele? (Assume the population is 50% men and 50% women.)

	a.	0.038
	b.	0.059
	c.	0.033
	d.	0.057
	e.	0.039

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Answer 1

Answer #1

Answer:

e. 0.039

Explanation:

4 hemophilic women = 8 hemophilic alleles

30 hemophilic men = 30 hemophilic alleles

80 carrieres = 80 normal alleles and 80 hemophilic alleles

Remaining individuals are normal = 2000 – 114 = 1886

943 men = 943 normal alleles

943 women = 943*2 = 1886 normal alleles

Total alleles = 8+30+80+80+943+1886=3027

Total hemophilic alleles = 8+30+80 = 118

Frequency of hemophilic allele = 118/3027 = 0.039

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Answer 2

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