Ch 16 Population Genetics And Speciation

Question 1

Total genetic information available in a population

Answer 1

Gene pool

Question 2

Determined by dividing the number of a certain allele by the total number of alleles of all types in the population

Answer 2

Allele frequency

Question 3

This is equal to the number of individuals with the particular phenotype divided by the total number of individuals in the population

Answer 3

Phenotype frequency

Question 4

Genotype frequencies in a population tend to remain the same from generation to generation unless acted on by outside influences

Answer 4

Hardy Weinberg genetic equilibrium

Question 5

P^2 + 2pq + q^2 = 1

Answer 5

Hardy Weinberg equation

Question 6

The movement of individuals into a population

Answer 6

Immigration

Question 7

The movement of individuals out of a population

Answer 7

Emigration

Question 8

The process of genes moving from one population to another

Answer 8

Gene flow

Question 9

A phenomenon by which allele frequencies in a population change as a result of random events

Answer 9

Genetic drift

Question 10

Males or females being chosen as mates based on certain traits

Answer 10

Sexual selection

Question 11

The process of species formation

Answer 11

Speciation

Question 12

The internal and Extertal structure and appearance of an organism

Answer 12

Morphology

Question 13

A species is the population of organisms that can successfully interbreed but cannot breed with other groups

Answer 13

Biological species concept

Question 14

The physical separation of members of the population

Answer 14

Geographic isolation

Question 15

Happens when species arise as a result of geographic isolation

Answer 15

Allopatric speciation

Question 16

Results from barriers to successful breeding between population groups in the same area

Answer 16

Reproductive isolation

Question 17

Occurs when two subpopulations become reproductively isolated within the same geographic area

Answer 17

Sympatric speciation

Question 18

The idea that speciation occurs at a regular gradual rate

Answer 18

Gradualism

Question 19

Change occurred in a few thousand rather than a few million years

Answer 19

Punctuated equilibrium

Question 20

The study of evolution from a genetic point of view

Answer 20

Population genetics

Question 21

A group that also includes new world monkeys, old world monkeys, apes, and humans. Rotating shoulder and elbow joints and an opposable thumb

Answer 21

Anthropoid primates

Question 22

Primate lineages that evolved the earliest that include lemurs, lorises, and tarsiers

Answer 22

Prosimians

Question 23

Bipedalism, bowl shaped pelvis, S shaped spine, aligned toes, large brain

Answer 23

Characteristics of humans