Answer: 0.11
Step-by-step explanation:
According to the Hardy-Weinberg principle, it's stated that the sum of the two alleles must be 1.
In this case, we've been given that a trait has two alleles, represented by p and q and p is given as 0.89, then the value of P will be:
p + q = 1
q = 1 - p
q = 1 - 0.89
q = 0.11
Therefore, q is 0.11