RNA Polymerase don’t get dissociated with one hairpin which is 2:3 

TLS Online TPP Program

#Id: 3263

#Unit 3. Fundamental Processes

DNA is also subject to attack from reactive oxygen species (e.g., O2- , H2O2, and OH†). These potent oxidizing agents are generated by ionizing radiation and by chemical agents that generate free radicals. Oxidation of guanine, for example, generates 7,8-dihydro-8-oxoguanine, or oxoG. 

TLS Online TPP Program

#Id: 2721

#Unit 12. Applied Biology

Bactericidal drugs 

Bactericidal drugs kill bacteria. For example, cell wall synthesis inhibitors (e.g., penicillins and cephalosporins) cause bacterial lysis 

TLS Online TPP Program

#Id: 8444

#Unit 1. Molecules and their Interaction Relevant to Biology

Both the pi helix and the 310 helix occur rarely and usually only at the ends of a helices or as single-tum helices. They are not energetically favorable, since the backbone atoms are too tightly packed in the 310 helix and so loosely packed in the n helix that there is a hole through the middle. 

Only in the a helix are the backbone atoms properly packed to provide a stable structure.

TLS Online TPP Program

#Id: 9597

#Unit 11. Evolution and Behavior

Homo habilis – First tool maker

TLS Online TPP Program

#Id: 6474

#Unit 3. Fundamental Processes

The promoters for Classes I and II, 5S and tRNA genes, are internal; they lie downstream of the start point.