Combined geneitic information of all members of a particular species.
The number of times an allele occurs in the gene pool compared with the number of times other alleles occur.
Single Gene Trait
trait controlled by one gene that has 2 alleles (two versions of the gene)
trait controlled by more than one gene. Each gene having 2 or more alleles
form of natural selection in which the entire curve moves. Individuals at one end of a distribution curve have higher fitness than individuals in t6he middle or at the other end of the curve
form of natural selection by which the center of the curve remains in its current position; occurs when individuals near the center of a distrubution curve have higher fitness than individuals at either end.
from a natural selectin in which a single curve splits into to; occurs when individuals at the upper and lower ends of a distribution curve have higher fitness than individuals in the middle.
random change in allele frequencies that occurs in small populations due to sexual reproduction and random mating.
change in allele frequencies as a result of teh migration of a small subgroup of a population.
principle that allele frequencies in a population will remain constant unless one or more factors cause the frequencies to change.
situation in which allele frequencies remain constant.
Formation of a new species
separation of species or population so that they cannot interbreed and produce fertile offspring.
form of reproductive isolation in which two populations have differences in courtship rituals or other types of behavior that prevent them from interbreeding.
form of reproductive isolation in which two populations are separated physically by geographic barriers such as rivers, mountains, or stretches of water.
form of reproductive isolation in which two populations reproduce at different times.