Evolution Of Populations

Question 0

This natural process shuffles existing alleles into new combinations

Answer 0

Sexual reproduction

Question 1

This creates new genes and alleles

Answer 1

Mutations

Question 2

Population is?

Answer 2

Localized group of individuals of the same species

Question 3

How are species are classified? 2 things

Answer 3

If they can breed!

Fertile offspring!

Question 4

All of the genes/ alleles for all of the loci in a population

Answer 4

Gene pool

Question 5

1st hardy Weinberg equation?

Answer 5

a+b=1

Question 6

2nd equation: hardy Weinberg

Answer 6

a^2+2ab+b^2=1

Question 7

a^2=?

Answer 7

Homozygous recessive

Question 8

2ab=

Answer 8

Heterozygous genotype frequency

Question 9

b^2=?

Answer 9

Homozygous dominant frequency

Question 10

5 conditions for hardy Weinberg?

Answer 10

1) extremely large population
2) no gene flow
3) no mutations
4) random mating
5) no natural selection

Question 11

What is genetic drift?

Answer 11

Random change In allele frequencies like AA to aa ratios

Question 12

What is gene flow

Answer 12

No migration in or out of the population

Question 13

Bottleneck is?

Answer 13

Sudden decrease in population. Organisms left in the population are left to reproduce. This greatly effects the genetic drift

Question 14

Founder effect is?

Answer 14

When population gets isolated into 2. The two populations can be be very different. (Galapagos finches)

Question 15

Genetic drift is more prevalent to occur in large or small populations

Answer 15

Small

Question 16

Directional selection is when?

Answer 16

Only one end of the phenotypic range is favored

Question 17

Disruptive selection is?

Answer 17

Both ends of the phenotypic bell curve are favored

Question 18

Stabilizing selection is?

Answer 18

When the middle of the bell curve is favored. Example is sickle cell

Question 19

Adaptive evolution does what to the relationship of an organism and it’s environment?

Answer 19

Increases them

Question 20

What does natural selection do to allele frequencies?

Answer 20

Increases the ones that enhance survival and reproduction

Question 21

Good example of an adaptive evolution is?

Answer 21

Camouflage

Question 22

This is the natural selection for the mating process

Answer 22

Sexual selection

Question 23

Intrasexual selection is?

Answer 23

When there is competition for mates! Usually males

Question 24

Intersexual selection is?

Answer 24

When one mate (females) picks their mate. (They are often choosy)