Pleiotropism single gene controls more than one phenotypic effect

TLS Online TPP Program

#Id: 2950

#Unit 3. Fundamental Processes

An ARS element consists of an A-T-rich region that contains discrete sites in which mutations affect origin function.

TLS Online TPP Program

#Id: 577

#Unit 2. Cellular Organization

Promoter mutations are also cis-acting. If they prevent RNA polymerase from binding at P-lac, the structural genes are never transcribed.

TLS Online TPP Program

#Id: 6312

#Unit 3. Fundamental Processes

TRCF has an ATPase activity. 

Base-pairing of something to the transcript to destabilize RNA-DNA hybrid

Causes hairpin to form

Causing the transcription to pause

Causes a string of U’s to be incorporated just downstream of hairpin

TLS Online TPP Program

#Id: 945

#Unit 5. Developmental Biology

SAP in the egg jelly of the sea urchin Arbacia punctulata 

Resact (14-amino acid chemotactic peptide)

TLS Online TPP Program

#Id: 1152

#Unit 7. System Physiology – Animal

Endothelium & epithelial cells, effectively prevents filtration of plasma proteins, because of strong negative electrical charges (associated with the proteoglycans).