A group of scientists is studying a certain gene in a population of fish. This gene has two alleles: a dominant allele ( ), and a recessive allele ( ). The scientists collected allele frequency data for the gene twice over a  -year period. The results are presented in the following table.Year Frequency of allele  Frequency of allele  2006   2018   After analyzing the data, the scientists determined that because the allele frequency changed, the fish population was not in Hardy-Weinberg equilibrium during the time period studied.Which of the following is the most likely reason that the population deviated from Hardy-Weinberg expectations during the study period?

A group of scientists is studying a certain species of fish. Previous genetic analysis has shown that eye color in this species is controlled by a single gene that has two alleles: a dominant allele ( ) that is associated with red eyes, and a recessive allele ( ) that is associated with black eyes.The scientists collected data about a population of these fish to help determine the population’s eye color allele frequencies. They found that out of   fish in the population,   fish had black eyes.Assuming that the population is in Hardy-Weinberg equilibrium, which of the following is the number of fish in the population that have the genotype  ?

Suppose that fish size is a heritable trait in a population of fish. The allele conferring large size (S) is incompletely dominant to the allele conferring small size (s). Heterozygotes (Ss) are of intermediate size. Suppose that a population of fish is at Hardy-Weinberg equilibrium and the frequency of the S allele is 0.9. What proportion of the next generation will be of intermediate size?The image shows two fishes of different sizes, with one fish bigger than the other.Multiple Choice0.180.90.010.090.81

Consider a gene with two alleles, one dominant, and the other recessive. If this population is in Hardy-Weinberg equilibrium with respect to this gene, what would happen to the dominant allele from generation to generation?Multiple choice question.Its frequency will remain unchangedIts frequency will slowly decreaseIts frequency will slowly increase

What conclusion can be drawn from the observation that a population is not in Hardy-Weinberg equilibrium?Multiple choice question.Allele frequencies are stable from one generation to the next.Evolutionary forces are affecting the population.Genotype frequencies but not phenotype frequencies are the same from one generation to the next.The population is isolated from other populations of the same species.

Which of the following describes a situation, in which the predominant genotype in a population in Hardy-Weinberg equilibrium is the heterozygote? Assume that the gene of interest has only two alleles: G and g.Multiple choice question.The allele frequencies of both G and g are intermediate in value.The allele frequency of g is low.The allele frequencies of G and g are very low.Incorrect. The allele frequencies of G and g are very high.