Question

1.Give anexample of each of the following;

a.Vestigial structure–

b.Homologous structure–

c.Homoplastic structure–

2.What is natural selection andwhat are Darwin’s mechanisms for natural selection? Be specific andthorough.

3.How do the following differ:directional selection, stabilizing selection, and disruptiveselection?

4.Pick one of thefollowing and thoroughly explain: gene flow,founder’seffect, genetic bottleneck, or naturalselection.

5.If a population of 1000individuals has 160aa genotypes, 480Aagenotypes, and360 AA genotypes, the allelefrequency of the dominant allele (A) is:

6. Fill inthe table.

Category	Contributes to EvolutionaryChanges (yes or no)
Naturalselection
GeneFlow
Neutralvariations
Random mating
Mutation
Geneticdrift

7. Fill inthe table with the reproductive isolating mechanisms beingdescribed:

Reproductive IsolatingMechanism	How It Works
	Similar species have structuraldifferences in their reproductive organs.
	Interspecific hybrid dies atearly stage of embryonic development
	Gametes of similar species arechemically incompatible.
	Offspring of interspecifichybrid are unable to reproduce.
	Similar species reproduce atdifferent times.
	Interspecific hybrid survivesto adulthood but is unable to reproduce successfully
	Similar species havedistinctive courtship behaviors.

8.Zeamaysis thescientific name of the corn plant. Zeais the ____________name.

A.​class

B.​division

C.​genus

D.​ordinal

E.​species

9.Shared ancestral characters mayalso be called:

A.​heteroplasticcharacters.

B.​synapomorphiccharacters.

C.​pleisomorphiccharacters.

D.​outgroups.

E.​pheneticcharacters.

10.Contrast the following terms:monophyletic, paraphyletic, and polyphyletic. Provide one examplefor each.

11.Which of the followingclassification systems is being described: cladistic,classical evolution, phenetic system.?

__________​Similarities of manycharacters

__________​Shared derivedcharacters

__________​Sharedancestral characters and sharedcharacters.