Regulatory T cells inactivate traditional T cells.

TLS Online TPP Program

#Id: 9159

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 9160

#Unit 11. Evolution and Behavior

When inbreeding takes place, the frequency of genotype

TLS Online TPP Program

#Id: 9161

#Unit 11. Evolution and Behavior

Close inbreeding is harmful because it increases the proportion of homozygotes and thereby boosts the probability that deleterious and lethal recessive alleles.

TLS Online TPP Program

#Id: 9162

#Unit 11. Evolution and Behavior

A recessive allele (a) that causes a genetic disease has a frequency (q) of 0.01. If the population mates randomly (F = 0), the frequency of individuals affected by the disease (aa) will be q = 0.01 = 0.0001.

However, if F = 0.25 expected frequency of the aa is .0026.

TLS Online TPP Program

#Id: 9163

#Unit 11. Evolution and Behavior

Effects of inbreeding on Japanese children

TLS Online TPP Program

#Id: 9164

#Unit 11. Evolution and Behavior

Negative assortative mating refers to a tendency for unlike individuals to mate. people engaged in negative assortative mating for height.

Increases the frequency of heterozygous genotypes (Aa).