In a population of humans, the frequency of blue eyes is 0.09. if having blue eyes is the recessive phenotype, what is the frequency of the recessive allele?
a. 0.3
b. 0.9
c. 0.18
d. 0.36

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.

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polymerase

protein

transport vesicle

modified protein

the left side of the picture going down is:

dna helix

single-stranded rna

endoplasmic reticulum

ribosome

golgi apparatus

protein released from vesicle

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filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.