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APB C23 Populations

QuestionAnswer
a group of individuals of the same species that live in the same area and interbreed, producing fertile offspring population
The state of a population in which frequencies of alleles and genotypes remain constant from generation to generation Hardy-Weinberg Equilibrium
The aggregate of all copies of every type of allele at all loci in every individual in a population. gene pool
Evolution that results in a better match between organisms and their environment adaptive evolution
A process in which chance events cause unpredictable fluctuations in allele frequencies from one generation to the next genetic drift
Form of genetic drift where a few individuals become isolated from a larger population & form a new population whose gene pool composition differs from the original population founder effect
Form of genetic drift where the size of population is reduce by a natural disaster or human actions bottleneck effect
The transfer of alleles from one population to another, resulting from the movement of fertile individuals or their gametes gene flow
Individuals at one end of the phenotypic range survive or reproduce more successfully than do other individuals directional selection
Individuals on both extremes of a phenotypic range survive or reproduce more successfully than individuals with intermediate phenotypes disruptive selection
Intermediate phenotypes survive or reproduce more successfully than do extreme phenotypes stabilizing selection
Individuals with certain inherited characteristics are more likely than other individuals to obtain mates sexual selection
Differences between the secondary sex characteristics of males & females of the same species. sexual dimorphism
Direct competition among individuals of one sex for mates of the opposite sex intrasexual selection
Individuals of one sex (usually females) are choosy in selecting their mates from the other sex Intersexual selection
Greater reproductive success of heterozygous individuals compared to homozygotes heterozygote advantage
frequency dependent
Created by: 100001916589047
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