A plant has two alleles for color the red allele is recessive and is represented by q the purple allele is dominant and is represented by p if 76 of 100 organisms are red what is q

0.87

Explanation:

As given

q=red (recessive)

p=purple (dominant);

According to Hardy-Weinberg law;

(p+q) = 1 = p² + 2pq + q²

As the information provided, the red allele is recessive and it is represented by q

so q² = 76/100 = 0.76

Now we can find the recessive allele frequency using it as q is the frequency of recessive allele.

Thus, q = √0.76

q = 0.8717797887

Thus, the value of q is 0.871