What is the biggest concern with using CRISPR?

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.

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary

Which term specifically refers to an area of the body between a medial and lateral structure