Adna strand has the sequence gttccagag. which is the complementary strand of rna

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.

Describe the function of the endomembrane system? what organelles are involved?

Which of the following is a common response to cell signaling?