7.2 - Populations Flashcards
1
Q
Define population
A
group of organisms of the same species that occupy a particular space at particular time, and can breed to produce fertile offspring
2
Q
Factors causing variation in phenotype:
A
- random fertilisation
- meiosis
- mutation
- environmental influences
3
Q
Hardy-Weinberg equations
A
p² + 2pq + q² = 1
p + q = 1
- p² = homozygous dominant
- q² = homozygous recessive
- 2pq = heterozygous
4
Q
Hardy-Weinberg assumptions
A
- no selective advantage
- large population
- random mating
- no mutations
- no emigration/immigration (movement of alleles in/out of population)
