theme 4c- the ways of change Flashcards
(8 cards)
1
Q
what do random processes effect?
A
frequencies of genetic variants and traits
during life cycle, especially mating and survival
2
Q
when will events be random?
A
when their probability of occurrence is not affected by an individuals phenotype
3
Q
what is genetic drift?
A
changes in allele frequency due to chance in finite populations, especially small populations
4
Q
what size population is more affected by genetic drift?
A
small poulations
5
Q
what does genetic drift result from?
A
random sampling error
6
Q
when is random sampling error higher?
A
with a smaller sample
7
Q
what are the consequences of genetic drift?
A
fixation or elimination of allele
8
Q
what happens if an allele is emilinanted?
A
no heterozygosity, only one phenotype
