Genetics...Q 4 - psychmledr

[ArchivalUser]

Is it C.

Im thinking along the lines of sickle cell protects against malaria which is endemic to this region.

[ArchivalUser]

Yes, The answer is C.
Heterozygotes for the sickle cell gene have resistance to malaria. West Africa is a malaria prone area and having resistance to malaria would enhance an individual's chances of living to reproduce. Thus, the sickle cell gene would be “selected for” in the population and its frequency would gradually increase because those with the gene would have more reproductive success.

Good reasoning guys
I hope we can all do this right in the exam

[ArchivalUser]

for high frequency in africa ans would be C

for low frequency in usa ans would would be B