unit 10 evolution vocab topic three

Question 0

all of the genes of a population

Answer 0

gene pool

Question 1

A group of individuals of the same species living in the same place at the same time

Answer 1

population

Question 2

how common a particular allele is in a population

Answer 2

allele frequency

Question 3

when allele frequencies do not change in a population over time

Answer 3

genetic equilibrium

Question 4

a permanent change in DNA, alters allele frequencies of a population by introducing new alleles to a population

Answer 4

mutation

Question 5

a change in allele frequencies of a population due to chance events

Answer 5

genetic drift

Question 6

a change in allele frequencies in a population due to some males reproducing more than others due to female preferences

Answer 6

sexual/ mate selection

Question 7

results in a change in allele frequencies by the movement of individuals from one population to another

Answer 7

migration

Question 8

when organisms with a desirable variation survive, reproduce and pass on that favorable variation to future generations

Answer 8

natural selection

Question 9

a type of genetic drift event in which a population’s allele frequencies are changed due to the setting of a new population by just a few individuals

Answer 9

founder effect

Question 10

a type of genetic drift event in which a populations allele frequencies are changed due to a population being reduced dramatically to just a few individuals

Answer 10

bottleneck

Question 11

permanent and complete removal of a species from environment

Answer 11

extinction

Question 12

the movement of genes from one population to another that results when individuals migrate

Answer 12

gene flow

Question 13

movement of genes into a population

Answer 13

immigration

Question 14

movement of genes out of a population

Answer 14

emigration

Question 15

a group of individuals that can breed to produce fertile offspring (offspring can grow up and have babies)

Answer 15

species

Question 16

the evolution of new species

Answer 16

speciation

Question 17

any barrier that prevents two individuals from being able to meet up and breed (like being seperated from one another by a river, valley, canyon, etc.)

Answer 17

Prezygotic barrier

Question 18

a type of pre-zygotic barrier in which individuals are physically separated from one another

Answer 18

geographic isolation

Question 19

speciation that results from geographic isolation

Answer 19

allopatric speciation

Question 20

species that results without geographic isolation

Answer 20

sympatric speciation

Question 21

any barrier that prevents two individuals from being able to create a fertile offspring (like they are too genetically different and the egg can thus be fertilized by the sperm)

Answer 21

postzygotic barrier

Question 22

a type of post zygotic barrier in which individuals are physically unable to form fertile offspring, even if they try to mate

Answer 22

reproductive isolation

Question 23

a speciation event that occurs in plants

Answer 23

polyploidy