A rat-eradication campaign in Salvador, Brazil killed most of the rats in the city. Researchers sequenced DNA from rats before and after the campaign. Which of the following findings would be evidence of a bottleneck effect combined with genetic drift? 

Does everything else appear to be working properly?

Consider this diagram of water molecules: Compare it to this diagram showing DNA bases: What do these diagrams have in common?

Which one of the following is a POSTZYGOTIC barrier to reproduction?

Which of the following is a PRE-zygotic barrier to interbreeding?

SURVEY: Which parts of this exam did you feel most prepared for, if any? Which material will you want to review more before the final, if any?

In some mammal, the H allele produces a dominant ‘hairy’ phenotype, and the h allele produces a recessive ‘no hair’ phenotype. An individual with no hair has offspring with an HH individual. What would happen?

Eugenics differs from the Theory of Evolution because…

Which of the following is a pair of organs that are directly HOMOLOGOUS to each other?

Which one of the following is REQUIRED for natural selection to occur?