Divergence
About Divergence
About Divergence
- Evolution is when a population’s genetic material begins to change – Which is divergence
- Any violations of the 5 conditions necessary for Hardy-Weinberg equilibrium can result in divergence
- The stability of gene frequency across generations
- Ideal hypothetical population
- Large Population
- Isolated Population
- No Net Changes
- Random Mating
- All Genotypes Equal in Reproductive Success
- Mutations – Mutations occur at a constant low rate
- Mutating can affect genetic equilibrium by producing new alleles
- Migration – Gene Flow – The change in gene frequency due to immigration/emigration of a population
- Genetic Drift – Allele frequency changes at random in small populations
- Mating – Non-random mating brings about divergence
- Mate selection due to geographical proximity/similar characteristics can cause genotypes to change, but not allele frequency
- P+Q=1
- P2+2PQ+Q2=1
- P = Frequency of Dominant Allele
- Q = Frequency of Recessive Allele
- P2 = Frequency of Homozygous Dominant Allele
- 2PQ = Frequency of Heterozygous Allele
- Q2 = Frequency of Homozygous Recessive Allele