Random Changes

Hardy Weinburg

________ principle: Allele frequencies in a popn will remain constant, therefore no evolution.

Neutral mutation

________: has no immediate effect on the individual.

Bottleneck Effect

________: dramatic, often temporary reduction in population size.

Genetic Drift

________: random process that leads to changes in gene frequencies over a short period of time.

Mutations

________: changes in the sequence of an organisms DNA.

Allele Fixation

________: when a genes frequenxy has reached 100 % within the population.

Beneficial Mutation

________: Gives individual sleective advantaege → fuels reporductive success.

Harmful Mutation

________: inhertibale changes in DNA that impairs the operation of a gene or function.

Gene Flow

________: Movement of alleles from one pop to another through mating or permanent migration.

Mutations

changes in the sequence of an organisms DNA

Neutral mutation

has no immediate effect on the individual

Harmful Mutation

inhertibale changes in DNA that impairs the operation of a gene or function

Beneficial Mutation

Gives individual sleective advantaege → fuels reporductive success

Genetic Drift

random process that leads to changes in gene frequencies over a short period of time

Bottleneck Effect

dramatic, often temporary reduction in population size

Founder Effect

when a small portion of population move somewhere else and establish a new population

Allele Fixation

when a genes frequenxy has reached 100% within the population

Gene Flow

Movement of alleles from one pop to another through mating or permanent migration

Hardy-Weinburg principle

Allele frequencies in a popn will remain constant, therefore no evolution