Formation Of Species

Front 1

microevolution

Back 1

an evolutionary change with a small group of species

Front 2

population genetics

Back 2

the study of the distributions and change of allele frequency in a population

Front 3

bell curve

Back 3

a graph showing distribution with a large rounded peak tapering at the ends

Front 4

gene pool

Back 4

the stock of different genes in an interbreeding population

Front 5

allele frequency

Back 5

the proportion of a particular allele among all allele copies being considered

Front 6

phenotype frequency

Back 6

a set of observerble characteristics of an individual resulting from the interaction of its genotype

Front 7

Hardy-Weinberg genetic

Back 7

the equalibrium being disturbed by forces such as mutations, gene flow, natural selection, and genetic drift

Front 8

immigration

Back 8

the action of coming to live in a different place permenantly

Front 9

equalibrium

Back 9

a state in which opposing influences and forces are balanced

Front 10

emigration

Back 10

the act of leaving a place to live in another

Front 11

gene flow

Back 11

the transfer of alleles or genes from one population to another

Front 12

genetic drift

Back 12

variation in the relative frequency of different genotypes in a small population

Front 13

sexual selection

Back 13

when male organisms become more extravegent in order to attract a female to mate with

Front 14

stabilizing selection

Back 14

favors intermediate varients and reduces phenotype variation

Front 15

disruptive selection

Back 15

describes changes in population genetics in which extreme values for a trait are favored

Front 16

directional selection

Back 16

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Front 17

speciation

Back 17

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Front 18

morphology

Back 18

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Front 19

biological species concept

Back 19

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Front 20

geographic isolation

Back 20

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Front 21

reproductive isolation

Back 21

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Front 22

gradualism

Back 22

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Front 23

punctuated equailibrium

Back 23

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