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?

The legs of a shrimp are used for movement, while the legs of a barnacle are used to catch food. However, both are descended from the jointed legs of a shared ancestor. This is an example of..

Image credit: Manuae This organism has a shell made from a mantle, a visceral mass inside, and a foot divided into tentacles. It is bilaterally symmetrical and has three tissue layers. It does NOT have a jointed exoskeleton or a dorsal nerve cord. This organism is…