Which is the most accurate? Select one: a. Populations of humans have less genet

Question

Which is the most accurate? Select one: a. Populations of humans have less genetic diversity the farther you get from Ethiopia, which is consistent with a pattern of genetic drift due to founder effects. b. Populations of humans have more genetic diversity the farther you get from Ethiopia, which is consistent with a pattern of genetic drift due to founder effects. c. Populations of humans have more genetic diversity the farther you get from Ethiopia, because they have had to adapt to novel habitats. d. Populations of humans have less genetic diversity the farther you get from Ethiopia, because they have had to adapt to novel habitats. Where did humans interbreed with Neanderthals? Select one: a. Northwestern Europe, probably in the Neander Valley in Germany. b. Outside of Africa, probably in the Middle East (also called the Near East). c. Within Africa, before the expantion of humans to other continents d. Within Africa, after the expantion of humans to other continents.

Explanation / Answer

1) The migration of humans out of Ethiopia occurred in bouts. Many different founder events shaped the patterns of genetic variations across our genomes. Genetic drift can be used to identify the population movements and bottleneck events in the ancestral population. It is strong especially in small populations. The farther the populations are from Ethiopia, the allelic diversity is lowered. This is due to the founder effects when the populations settle in the new parts of the world. So, the answer for this question is option (d) populations of humans have less genetic diversity the farther you get from Ethiopia, because they have had to adapt to novel habitats.

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