evolution Flashcards
1
Q
what is evolution
A
change in inherited characteristics of a group of organisms over time
2
Q
why does evolution occur
A
due to changes in frequency of alleles within a population
3
Q
what is a gene pool
A
sum total of all genes in a population at a given time
4
Q
what is allele frequency
A
the relative frequency of a particular allele in a population at a given time
5
Q
what are population genetics
A
the study of how allele frequencies within population of a species change over time leading to evolution
6
Q
define population
A
a group of organisms living in the same place at the same time
7
Q
what does the hardy weinberg principle state
A
frequency of alleles in a population remains constant from generation to generation
8
Q
under what 5 conditions does the hardy weinberg principle work
A
- no natural selection
- no sexual selection
- no mutations
- no gene flow
- large population
