Anthro101 - Week 4 Homework

The southern migration of which African people may have led to a significant increase in the incidence of malaria?

What is the cause of spontaneous mutation?

Transposable elements are DNA sequences that:

An individual who displays the disease sickle-cell anemia must have inherited the deleterious allele from both phenotypically normal parents. What, therefore, is this individual?

Regarding experimenting with rats licking (Radiolab), what is activated in the brain that leads to the DNA being affected?

What type of animal does the best-documented case of industrial melanism involve?

The type of selection that favored progressively larger brain size in human evolution is ________ selection.

Fitness trade-off refers to selection favoring which genotype?

When individuals of the same species are reproductively isolated, genetic differences may accumulate in sufficient number so that new species could emerge. What would such an event be an example of?

Which of the following is a possible outcome of persistent geographical isolation of two populations?

What effect does natural selection have on population variation?

While conducting research with a small population in South America, you note that an overwhelming majority of individuals exhibit signs of a specific genetic abnormality. What is most likely the cause of this?

In certain species of nonhuman primates there are groups where only one dominant female has access to mates. The other females must wait until the opportunity to mate presents itself. This will have direct impact on "fitness," influencing which of the following?

How do we know that Upper Paleolithic food foragers in Europe are ancestors to modern European populations?

Why are frameshift mutations more likely to have an impact at the phenotypic level?

A study of Galápagos finches after a long period of drought found that all species of finch on one of the islands had wide beaks well adapted to break open seeds. The type of evolution that leads to this phenotype distribution is ________ selection.

Evolution is complicated and manifest in many ways, but at the root of it all physical anthropologists define it as:

You are reading a scientific article about cheetahs that have stripes down their backs instead of spots. The article refers to this as a genetic mutation. Though they have no negative impact on the cheetahs' fitness, why are the stripes nevertheless considered a genetic mutation?

Some genetic disorders decrease susceptibility to malaria. What is an example of a genetic disorder that has this effect?

In Radiolab, what grew on the hands of the toads Kammerer was experimenting with?

What sticks to DNA and can cover its expression (Radiolab)?

A group of chimpanzees becomes separated by a mountain so that the two groups no longer interact with one another. If they are not able to physically interact, what might you conclude about the two populations?

Mutations in DNA found in which cells are most likely to have significant evolutionary consequences?

How can humans become infected with malaria?