Genetic Diversity Flashcards
What is selective breeding/artificial selection
•Individuals w/specific characteristics used to parent next generation
•Killed if offspring doesn’t hold desired characteristics
•smaller variety of alleles
REDUCES GENETIC DIVERSITY
What is genetic diversity?
The number of different species and diversity within a species. Greater the genetic diversity = greater the species chance of surviving
What is the founder effect?
Individuals from a population colonise in a new region. New pop=
•less genetic diversity
•develop into separate species
•fewer alleles - less able to adapt
What is a genetic bottleneck
Species which have a dramatic drop in numbers (natural disasters/hunting)
Reduces genetic diversity
New population breed + reastablish