1.Give anexample of each of the following;
a.Vestigial structureâ b.Homologous structureâ c.Homoplastic structureâ 2.What is natural selection andwhat are Darwinâs 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,founderâseffect, 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.âclass
B.âdivision
C.âgenus
D.âordinal
E.âspecies
9.Shared ancestral characters mayalso be called: A.âheteroplasticcharacters.
B.âsynapomorphiccharacters.
C.âpleisomorphiccharacters.
D.âoutgroups.
E.âpheneticcharacters.
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.? __________âSimilarities of manycharacters
__________âShared derivedcharacters
__________âSharedancestral characters and sharedcharacters.
Category | Contributes to EvolutionaryChanges (yes or no) |
Naturalselection | |
GeneFlow | |
Neutralvariations | |
Random mating | |
Mutation | |
Geneticdrift |
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. |
A.âclass
B.âdivision
C.âgenus
D.âordinal
E.âspecies
A.âheteroplasticcharacters.
B.âsynapomorphiccharacters.
C.âpleisomorphiccharacters.
D.âoutgroups.
E.âpheneticcharacters.
__________âSimilarities of manycharacters
__________âShared derivedcharacters
__________âSharedancestral characters and sharedcharacters.