Evolutionary Biology 3: Neutral evolution Flashcards
1
Q
What is the neutral theory?
A
Most molecular variation does not affect reproductive fitness (neutral variation)
The dynamics of neutral genetic variation produced by chance
2
Q
Difference between purifying and positive Darwinian (adaptive) selection
A
Purifying = deleterious mutation decrease organism fitness -> removed from population
Adaptive = advantageous mutations increase organism fitness -> favourable and increases in population
3
Q
Behaviours that affect effective population
A
Sex ratio Reproductive skew Behaviour Seasonality Fluctuating population size
