Population Genetics

What is a population?

• all individuals of the same species that live different places at the same time

• all individuals of any species that live in a particular place at the same time

• all individuals of the same species that live in a particular place at the same time

• all individuals of the same species that live in a particular place at different times

What is genetic variation?

• similarities among individuals in the composition of their genes or other DNA sequences

• differences among individuals in the composition of their genes or other DNA sequences

• differences among only related species in the composition of their genes or other DNA sequences

What is population genetics?

• the study of genetic variability within a population and of the evolutionary forces that act on it

• the study of genetic variability within a species and of the evolutionary forces that act on it

Where on homologous chromosomes do alleles occupy?

• locus

• loci / corresponding positions

• cillia

• millia

What is an allele?

• One of two or more alternate forms of a gene

• Two of three or more alternate forms of a gene

What is balancing stabilization?

• conditions favor individuals at both extremes of a phenotypic range over individuals with intermediate phenotypes

• maintenance of two or more variations within the population

• conditions favor individuals exhibiting one extreme of a phenotypic range

• acts against both extreme phenotypes and favors intermediate variants

What is stabilizing selection?

• conditions favor individuals exhibiting two extremes of a phenotypic range

• acts against both extreme phenotypes and favors intermediate variants

• conditions favor individuals at both extremes of a phenotypic range over individuals with intermediate phenotypes

• conditions favor individuals exhibiting one extreme of a phenotypic range

What is disruptive selection?

• conditions favor individuals at both extremes of a phenotypic range over individuals with intermediate phenotypes

• conditions favor individuals at an extreme of a phenotypic range over individuals with intermediate phenotypes

• acts against both extreme phenotypes and favors intermediate variants

• conditions favor individuals exhibiting one extreme of a phenotypic range

What is directional selection?

• conditions favor individuals at both extremes of a phenotypic range over individuals with intermediate phenotypes

• conditions favor individuals exhibiting two extremes of a phenotypic range

• conditions favor individuals exhibiting one extreme of a phenotypic range

• acts against both extreme phenotypes and favors intermediate variants

Fitness:

• the number of surviving offspring left in the current generation

• the number of surviving offspring left in the next generation

• being skinny queen

• the number of dead offspring left in the next generation