Chapter 16

Question 1

collection of gene

Answer 1

population

Question 2

collection of genes for all the traits in a population

Answer 2

gene pool

Question 3

% of a specific allele of a certain gene in the gene pool

Answer 3

allele frequency

Question 4

5 conditions for Hardy-Weinberg Principle

Answer 4

no mutations
no entering nor leaving
population is large
random mating
no natural selection

Question 5

movement into a population

Answer 5

immigration

Question 6

movement out of a population

Answer 6

emmigration

Question 7

movement of genes into or out of a population through migration

Answer 7

gene flow

Question 8

average form of a trait have the advantage

Answer 8

stabilizing selection

Question 9

one of the extreme forms of a trait has the advantage

Answer 9

directional selection

Question 10

both extreme forms of a trait has the advantages

Answer 10

disruptive selection

Question 11

3 examples of prezygotic isolation

Answer 11

incompatable behavior
diff mating calls
diff mating season

Question 12

3 examples of postzygotic isolation

Answer 12

offspring may not develop completely
offpsring may die early
ossspring may not be fertile

Question 13

organisms that are not closely related become more similar

Answer 13

convergent evolution

Question 14

2 or more related species become more and more dissimilar

Answer 14

divergent evolution