genetic diversity and natural selection Flashcards
(6 cards)
1
Q
genetic diversity
A
number of different alleles of genes in a population
2
Q
phenotype
A
expression of genotype & its interaction with the environment
3
Q
natural selection
A
new allele arises from random mutation. Leads to phenotype in the population to have a higher reproductive success than other phenotypes. over many generations the new allele increases in frequency in the population
4
Q
What are the 3 types Of natural selection
A
stabilising directional, disruptive
5
Q
Stabilising selection
A
Stabilising selectionfavours the middle phenotype of the shewed graph
6
Q
directional selection
A
favours extreme phenotypes causes dist ribution of alleles to skew to that direction
