population genetics Flashcards
1
Q
what is genetic drift?
A
the change in allele frequency unaffected by selective pressure. it occurs at a constant rate- molecular clock
2
Q
what are recombinant chromosomes?
A
ones that have had their similar alleles shuffled.
3
Q
what is genetic hitchhiking?
A
when alleles that are close together are inherited together during allele shuffling.
4
Q
what is sympatric speciation?
A
when a species diverges into two in the same environment as one another.
5
Q
what is hybridisation?
A
when geographical factors bring two similar species to mate with one another.
