Van Valen law - he found a surprising result: rather straight curves, implying that the probability of extinction is roughly constant.

TLS Online TPP Program

#Id: 3267

#Unit 3. Fundamental Processes

Bruce Ames of the University of California at Berkeley devised a simple test for the potential carcinogenic effects of chemicals based on their capacity to cause mutations in the bacterium Salmonella typhimurium.

TLS Online TPP Program

#Id: 7336

#Unit 11. Evolution and Behavior

Factor affecting Hardy Weinberg genetic equilibrium Nonrandom matting - Alter only genotype frequency

TLS Online TPP Program

#Id: 1691

#Unit 4. Cell Communication and Cell Signaling

TLS Online TPP Program

#Id: 6912

#Unit 8. Inheritance Biology

In heterozygotes DUPLICATIONS - The pairing and synapsis of homologous regions require that one or both chromosomes loop and twist. 

TLS Online TPP Program

#Id: 9063

#Unit 4. Cell Communication and Cell Signaling

Phosphorylation of PKA at threonine-197 leads to conformational change in the activation loop, that promotes binding of both ATP and its substrate proteins.

PKA can autophosphorylate itself on T197