*factors in variation Flashcards
0
Q
Define genetic drift
A
Evolutionary changes, or changes in alleles frequencies, that are produced by random factors in small populations. Genetic drift is a result of small population size.
1
Q
Define Gene flow
A
Exchange of genes between populations
2
Q
Define Mutation
A
A change in DNA. The term can refer to changes in DNA bases (specifically called point mutations) as well as to changes in chromosome number and/or structure
3
Q
Define Variation
A
In genetics, inherited differences among individuals; the basis of all evolutionary change.
