If 90 out of 200 individuals in a population express the recessive phenotype, what is the frequency of the recessive allele?If 90 out of 200 individuals in a population express the recessive phenotype, what proportion of the population are expected to be heterozygotes?

If the frequency of the homozygous recessive (pp) members of the population is 0.64, what is the frequency of allele p?

The frequency of a recessive allele in a population is 50%. What is the frequency of the dominant allele?

A population is made up of individuals where 77 have the A1A1 genotype, 65 have the A1 A2 genotype, and 123 have the A2A2 genotype. What is the allele frequency of A1? Answer to 2 decimal places.

A hypothetical population has two alleles for a “B" gene: B1 and B2. In a random sample of 50 diploid zygotes (for a total of 100 alleles), the following genotypes were found: 20 B1B1, 20 B1B2, and 10 B2B2 The above values represent the initial genotype frequencies of zygotes in the population. Let's say that selection acts against the B2 allele, and all 10 individuals with B2B2 genotype die off before reaching maturity (leaving 0 B2B2 individuals). (The number of surviving adults in the population is 40, so the number of alleles is 80). What is the new observed frequency of the homozygous dominant genotype? O A. 0.10 О В. О.70 O C. 0.25 O D.0.50 O E. 0.75

Why is genetic variability necessary in a population? What can happen if genetic variability is reduced?