Answers: 1
Biology, 21.06.2019 18:30, smelcher3900
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.
Answers: 3
Biology, 22.06.2019 01:00, lindasuebairdoyjpf7
Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain
Answers: 2
What term describes the specific genetic makeup or code for an organism?...
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