1
Q
Define Natural Selection
A
Process whereby environment selects the better adapted to survive and reproduce
2
Q
what were Darwins observation with regards to Natural Selection
A
- More offspring are produced than required
- Natural Variation
- Change in variation results in differential reproduction
( Variated organisms are better adapted to reproduce) - Characteristics/ traits were heritable
3
Q
what natural selection do?
A
Operates on variation of organisms
4
Q
causes genetic variation
A
- Germ- Line Mutation
- Duplication genes swapping
- Whole chromosomes deleted/duplicated
- Sexual Reproduction- new combination of alleles
5
Q
Define Gene Flow
A
movement of genes between populations, occurs during migration
