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Evolution

TermDefinition
Bottle Neck Effect occurs when a small group survives a natural disaster and has a different gene pool that the original population
Founders Effect a small group migrates away from the larger group: the gene pool is not the same as the original pool
Genetic drift a change in the allele frequency NOT due to natural selection: it is random
Adaptive radiation after mass extinction, certain species fill in empty spaces and flourish.
Mechanical isolation separation of a species due to incompatibility of genetalia ex. Great Danes and Chihuahuas.
Homozygous lethal alleles stay in the population due to heterozygous individuals
Gene pool the combined alleles for all members of a population
Gene shuffling genetic variation caused by segregation of alleles and crossing over during meiosis, along with sexual reproduction
Created by: natalie.connolly
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