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: 7528

#Unit 6. System Physiology – Plant

TIR1 recruits AUX/ IAA proteins to the SCF -TIR1 complex in an auxin-dependent manner. Once recruited by auxin, AUX/IAA proteins are ubiquitinated by the E3 ligase activity of the SCF-TIR1 complex, which marks the protein for destruction by the 26S proteasome.

TLS Online TPP Program

#Id: 7482

#Unit 4. Cell Communication and Cell Signaling

IgD

B cell antigen receptor and may participate in B cell maturation.Exact function is still unclear, IgD may be involved in humoral immune responses by regulating B cell selection and homeostasis.

TLS Online TPP Program

#Id: 6768

#Unit 3. Fundamental Processes

In nonsense mediated decay  in the addition of multiple lysines to the end of the protein (AAA is the codon for lysine) and stalling of the ribosome at the end of the mRNA. 

TLS Online TPP Program

#Id: 3605

#Unit 3. Fundamental Processes

There are two major steps to start translation

1. Activation of amino acids,

2. Assembly of ribosomes.

TLS Online TPP Program

#Id: 9419

#Unit 11. Evolution and Behavior

Intersexual selection - Members of one sex, usually females, choose mates based on attractive characteristics such as color of plumage or sound of courtship song.