How do protein and amino acid sequences assist in creating evolutionary relationships?

a. they determine common ancestors.
b. they represent adaptive radiation.
c. they dictate allele frequency.
d. they show mutation rate.

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.

Warmer ocean surface water would most likely be found near

What was the purpose of the punnett square