9.2 Natural Selection & Microevolution Flashcards
1
Q
What are selective pressures
A
Factors that influence allele frequencies in a population. Driving force of evolution.
2
Q
What is Gene Flow
A
Movement of genes between different populations.
3
Q
Genetic Drift is
A
The change in allele frequencies over time due to chance events.
4
Q
Types of Selection:
A
Positive Selection - favours a heritable trait
Negative Selection - disfavours a heritable trait
