Genetic Variation Flashcards
1
Q
Two ways of preserving genetic variation
A
Heterozygote adv;
Frequency dependent selection
2
Q
Explain heterozygote adv
A
Not all recessive alleles are disadvantages
3
Q
Define frequency dependent selection
A
Relative fitness of different genotypes is related to how frequently they occur in the population
4
Q
Explain frequency dependent selection
A
Fitness of a phenotype declines if too common in a population;
Scale-eating fish of Lake Tanganyika in Africa;
Left-mouthed/ right-mouthed
