4.2

Haplotype

Linked combinations of SNPs that tend to be inherited together on a piece of DNA

Recombination doesn’t always happen at the same place, so overtime many recombination events happening to these chromosomes will cause the…

‘blocks’ on red or blue to identity to shrink over generations

What happens to the haplotypes as generational time progresses?

Get shorter and shorter until they reach a point of equilibrium

What haplotypes are very informative for evolutionary history due to sex specific inheritance?

Mitochondrial and Y-chromosome

The SNPs that make up a haplotype are said to be…

“linked” with one another because they are often inherited together

New mutations can define new…

sub-haplotypes

Haplotype group

a group of individuals of a species that shares a haplotype(s)

Admixture

Or gene flow, is the transfer of DNA between different populations/closely related species via recombination (typically)

What two population structures give similar patterns of inheritance?

Admixture and ancestral population

In the case of recent ancestry, we expect the tracts of admixture to be relatively long. Why is this?

Because recombination has not had a chance to break up the admixed haplotype blocks yet

In ancient ancestry we expect to find…

smaller haplotype blocks because recombination has broken these regions down