Overdominance the heterozygote has higher fitness than the  fitnesses of the two homozygotes

Underdominance, in which the heterozygote has lower fitness than both homozygotes.

Directional selection leads to fixation of the favored allele and elimination of the other allele, as  long as no other evolutionary forces act on the population.

TLS Online TPP Program

#Id: 5196

#Unit 7. System Physiology – Animal

Tissue thromboplastin and factor VII activate factors IX and X.

TLS Online TPP Program

#Id: 8635

#Unit 2. Cellular Organization

During late anaphase, telophase and G1, APC/C bound to Cdh1 targets B type cyclins and geminin for degradation.

TLS Online TPP Program

#Id: 9830

#Unit 6. System Physiology – Plant

Plants that are deficient in phyB often look like wild-type plants that are grown under dense vegetative canopies.

TLS Online TPP Program

#Id: 8613

#Unit 2. Cellular Organization

Threonine -160 phosphorylation is mediated by 

CDK-activating kinase (CAK)

TLS Online TPP Program

#Id: 9403

#Unit 11. Evolution and Behavior

Territory

It is an area of land that is actively defended against animals of the same species or against animals of the same species and gender.