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SpyIntel [72]
2 years ago
5

In a population of humans, the frequency of blue eyes is 0.09. If having blue eyes is the recessive phenotype, what is the frequ

ency of the recessive allele?
a. 0.3
b. 0.9
c. 0.18
d. 0.36
Biology
2 answers:
lubasha [3.4K]2 years ago
8 0

Answer: The correct answer is-

a. 0.3

Explanation-

As per the question, the frequency of blue eyes (which is a recessive trait) is 0.09.

Let us consider the genotype for it be 'qq' ( q representing recessive allele) that produces blue eyes.

According to equation of Hardy Weinberg principle-

p²+ 2pq+ q² = 1

where p² represent the genotype for dominant trait and q² is the genotype for recessive trait.

p represents frequency of dominant allele and q is recessive allele frequency.

q² =  0.09

q = √0.09

  =  0.3

Thus, option a) 0.3 is the right answer.

hjlf2 years ago
6 0
The first allele<span> is dominant and the second </span>allele<span> is </span>recessive<span>.Thus,t</span>he frequency of the recessive allele will be 0.3.
Hope it helps.
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