Gentics & Evolution

Microevolution

Population change over time

Macroevolution

Process that changes taxonomic groups & creates new species

Allele frequency

How often a specific allele appears in a population

Gene pool

Sum of all the alleles in a population

Phenomenon genetic drift

Allele frequency changes with no advantage to the population

Population variation

The distribution of phenotypes

Smaller

The _____ the population, the larger the impact of genetic drift

Gene flow

Evolutionary force caused by the migration of individuals/gametes

Mutations

Most common way for variance in a population

Assortative mating

Individual mates with those phenotypically similar

Relative fitness

An individual's survival ability compared to others in the same population

Stabilizing

Type of natural selection against extreme variations

Directional

Type of natural selection pushing for a certain variation, happens with environmental changes

Diversifying

Type of natural selection that favors two ends of a variation, when they both have advantages

Frequency dependent

Type of natural selection that favors either common or rare phenotypes