The graph illustrates the frequencies of two genotypes, AA and Aa, over many generations. The recessive condition, aa,
results in sickle cell anemia. Wince this is a recessive condition, individuals with Aa or AA do not display the sickle cell
phenotype. What statement explains what is shown in the graph beyond generation 35 for this gene?
0)
Individuals with the heterozygous condition replaced individuals with
either homozygous condition.
All of the individuals with a phenotype died, leaving only individuals
displaying the dominant phenotype.
Females preferred mating with Aa individuals, resulting in a continued
presence of the recessive (a) allele.
The population reached equilibrium for this trait, as the genotype
frequencies stabilized after 35 generations.
ASAP