Mvhs Ap Bio Ch 23-Evolution Of Populations

Front 1

Emphasizes the extensive genetic variation within populations and recognizes the importance of quantitative characters.

Back 1

Population Genetics

Front 2

Idea that integrates discoveries and ideas from many different fields.

Back 2

Modern Synthesis

Front 3

A localized group of individuals belonging to the same species.

Back 3

Population

Front 4

A group of populations whose individuals have the potential to interbreed and produce fertile offspring.

Back 4

Species

Front 5

The total aggragate of genes in a population at any one time.

Back 5

Gene Pool

Front 6

Emphasizes the extensive genetic variation within populations and recognizes the importance of quantitative characters.

Back 6

Population Genetics

Front 7

Idea that integrates discoveries and ideas from many different fields.

Back 7

Modern Synthesis

Front 8

A localized group of individuals belonging to the same species.

Back 8

Population

Front 9

A group of populations whose individuals have the potential to interbreed and produce fertile offspring.

Back 9

Species

Front 10

The total aggragate of genes in a population at any one time.

Back 10

Gene Pool

Front 11

An axiom maintaining that the sexual shuffling of genes alone cannot alter the overall genetic makeup of a population.

Back 11

Hardy-Weinburg Theorem

Front 12

The condition describing a nonevolving population.

Back 12

Hardy-Weingburg Equilibrium

Front 13

Frequency of "RR" genotype + Frequency of "Rr" genotype + Frequency of "rr" genotype = 1.

Back 13

Hardy-Weinburg Equation

Front 14

A change in the gene pool of a population from generation to generation.

Back 14

Microevolution

Front 15

A change in a population's allele frequency due to chance.

Back 15

Genetic Drift

Front 16

Genetic drift is due to a drastic reduction in population size.

Back 16

Bottleneck Effect

Front 17

Genetic drift in a new colony.

Back 17

Founder Effect

Front 18

Differential success in a population.

Back 18

Natural Selection

Front 19

A population may lose or gain alleles due to the migration of fertile individuals or gametes between populations.

Back 19

Gene Flow

Front 20

Change in an organism's DNA.

Back 20

Mutation

Front 21

Two or more distinct morphs are each represented in high enough frequencies to be readily noticeable.

Back 21

Polymorphic

Front 22

The level of whole genes and how they differ.

Back 22

Gene Diversity

Front 23

Compares the nucleotide sequences of DNA samples from two individuals and then pooling the data from many such comparisons of two individuals.

Back 23

Nucleotide Diversity

Front 24

Differences in gene pools between populations of subgroups of populations.

Back 24

Geographic Variation

Front 25

A graded change in some trait along a geographic axis.

Back 25

Cline

Front 26

The ability of natural selection to maintain stable frequencies of two or more phenotypic forms in a population.

Back 26

Balance Polymorphism

Front 27

Individuals who are heterozygous at a particular locus have greater survivorship and reproductive success than any type of homozygote, then two or more alleles will be maintained at that locus by natural selection.

Back 27

Heterozygote Advantage

Front 28

The survival and reproduction of any one morph declines if that phenotypic form becomes too common in the population.

Back 28

Frequency-Dependent Selection

Front 29

No selective advantage for some individuals over others. Example: the diversity of human fingerprints.

Back 29

Neutral Variation

Front 30

The contribution of a genotype to the next generation compared to the contributions of alternative genotypes for the same locus.

Back 30

Relative Fitness

Front 31

The contribution an individual makes to the gene pool of the next generation relative to the contribution of other individuals.

Back 31

Darwinian Fitness

Front 32

Natural selection that favors individuals at one end of the phenotypic range.

Back 32

Directional Selection

Front 33

Occurs when environmental conditions are varied in a way that favors individuals on both extremes of a phenotypic range.

Back 33

Diversifying Selection

Front 34

Acts against the extreme phenotypes and favors the more common intermediate variants.

Back 34

Stabilizing Selection

Front 35

The distinction between males and females secondary sex characteristics.

Back 35

Sexual Dimorphism

Front 36

A direct competition among individuals of one sex for members of the opposite sex.

Back 36

Intrasexual Selection

Front 37

Individuals of one sex that are choosy in selecting their mates from individuals of the opposite sex.

Back 37

Intersexual Selection

Front 38

Emphasizes the extensive genetic variation within populations and recognizes the importance of quantitative characters.

Back 38

Population Genetics

Front 39

A theory of evolution emphasizing natural selection, gradualism, and populations as the fundamental units of evolutionary change.

Back 39

Modern Synthesis

Front 40

Localized group of individuals belonging to the same species.

Back 40

Population

Front 41

A group of populations whose individuals have the potential to interbreed and produce fertile offspring in nature.

Back 41

Species

Front 42

The total aggregate of genes in a population at any one time.

Back 42

Gene Pool