Exam 2

Question 1

The impact of migration on gene freq. depends on two things

Answer 1

1. The number of immigrants

2. The difference in gene frequency

Question 2

Why is mutation important

Answer 2

it is the only source of new genetic material

Question 3

One way to increase the probability of detection is to ______ the number of progeny

Answer 3

increase

Question 4

Another way to increase the probability of detection is to increase the frequency of ___________ in that test mates

Answer 4

recessive gene

Question 5

Creating progeny to learn about genotypes is

Answer 5

progeny test

Question 6

positive assortative mating increases

Answer 6

homozygous

Question 7

negative assortative mating increase

Answer 7

heterozygous

Question 8

with _______ there is a one to one relationship between the phenotypes and the genotypes

Answer 8

dominance

Question 9

HW Equilibrium law states that in ________, _______ populations, gene and genotype frequencies remain _____

Answer 9

Random mating, large, constant

Question 10

Three forces that change gene frequency

Answer 10

Migration, mutation, selection

Question 11

Mutation is not a powerful force

Answer 11

_________

Question 12

migration can be if in large numbers

Answer 12

___________

Question 13

Natural selection against a _______ is very slow

Answer 13

Recessive gene

Question 14

IF male and female gene frequencies are equal is will take ____ generations to go back to equilibrium

Answer 14

1

Question 15

IF male and female gene frequencies are different is will take ____ generations to go back to equilibrium

Answer 15

2

Question 16

why is it slow for a recessive gene to return back to equilibrium

Answer 16

because it takes a while for that recessive gene to overpower the dominate gene with multiple matings and also the fact that is takes two generations because the first generation is only the average of the parents frequencies and the second generation is when the population finally reaches equilibrium.