Mutations in the rpoB gene can reduce termination at a rho-dependent site.  Mutations in rpoB can restore the ability to terminate transcription at rho-dependent sites in rho mutant bacteria.

TLS Online TPP Program

#Id: 1853

#Unit 3. Fundamental Processes

There are 27 of these repeats in the yeast Pol II CTD, 32 in the worm Caenorhabditis elegans, 45 in the fly Drosophila, and 52 in humans. 

YSPTSPS repeats in CTD corresponds to the complexity of the genome.

TLS Online TPP Program

#Id: 5890

#Unit 3. Fundamental Processes

In DNA polymerase, the nucleotide-binding pocket cannot accommodate a 2’-OH on the in-coming nucleotide. This space is occupied by two amino acids that make van der Waals contacts with the sugar ring. Changing these amino acids to other amino acids with 

TLS Online TPP Program

#Id: 3627

#Unit 3. Fundamental Processes

Mitochondria have their own tRNAs, so their code variations do not affectthe much larger cellular genome.

TLS Online TPP Program

#Id: 5430

#Unit 7. System Physiology – Animal

Retrograde transport, is in the opposite direction (from the nerve ending to the cell body), occurs along microtubules at about 200 mm/day.

TLS Online TPP Program

#Id: 1933

#Unit 4. Cell Communication and Cell Signaling

C5 Initiates the Generation of the MAC