A genetic study conducted over two generations found that the frequencies of genotypes in the first generation were AA: 0.36, Aa: 0.48, aa: 0.16. In the second generation, genotype frequencies remained the same. According to Hardy–Weinberg equilibrium, what can we assume?

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

2polnis which of the following is an advantage of an in vitro experiment?me