Chapter 23: The Evolution of Populations review answers EVEN

2) blending hypothesis

4) It exemplifies the tentative nature of scientific knowledge.

8) the frequency of all genotypes must be equal.

10) 42

12) 0.50

14) greater than 0.64

16) .600

18) 1,920

20) an increasing mutation rate

22) duplication

24) natural selection.

26) gene flow.

28) 0.1 a, 0.9 A

30) genetic drift.

32) the number of its offspring that survive to reproduce.

34) that the organism leaves more viable offspring than others of its species.

36) relative fitness.

e 38)

b 40)

d 42)

44) artificial selection & directional selection

46) They have a relative evolutionary fitness of zero.

48) directional selection

50) Given enough time, these flies will develop longer antennae and become perfect mimics.

52) change in the gene pool of a population due to differential reproductive success

54) eight

56) directional selection.

58) intersexual selection for traits, such as long tails, that help males attract mates.

60) stabilizing selection.