E. coli SSB is a tetramer of 74 kD that binds single-stranded DNA cooperatively

TLS Online TPP Program

#Id: 6145

#Unit 3. Fundamental Processes

Cockayne syndrome can be caused by mutations in either of two genes (CSA and CSB), both of whose products appear to be part of or bound to TFIIH, and can also be caused by specific mutations in XPB or XPD.

TLS Online TPP Program

#Id: 5482

#Unit 7. System Physiology – Animal

The nicotinic receptor for ACh is an example of a ligand-gated ion channel

TLS Online TPP Program

#Id: 2258

#Unit 11. Evolution and Behavior

Directional selection leads to fixation of the favored allele and elimination of the other allele.

TLS Online TPP Program

#Id: 3393

#Unit 3. Fundamental Processes

Because of its high error rate, translesion synthesis (like NHEJ) can be considered a system of last resort. It enables the cell to survive what might otherwise be a catastrophic block to replication, but the price that is paid is a higher level of mut

TLS Online TPP Program

#Id: 9769

#Unit 6. System Physiology – Plant

NADPH oxidases respiratory burst oxidase homolog (Atrboh) genes