Evolution is a change in the allele frequencies that occur in an individual over time. True or false?

Evolution is driven by both nonrandom and random mechanisms. Identify the mechanisms of evolution that are random and comment on how they affect allele frequencies across generations.

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

A population has 100 homozygous dominant individuals (AA), 372 heterozygous individuals, and 40 homozygous recessive individuals (aa). What is the frequency of the" a" allele------- . Is the population in Hardy Weinberg equilibrium------- ? NOTE: For [b] simply enter yes or no.   Please mention (a) allele frequency.   Is it HW equilibrium?