The length of the priming RNA is limited to eight to 14 bases. Apparently, DNA polymerase III is responsible for displacing the primase.

TLS Online TPP Program

#Id: 1856

#Unit 3. Fundamental Processes

Promoters that do not contain a TATA element are called TATA-less promoters. Surveys of promoter sequences suggest that 50% or more of promoters may be TATA-less.

TLS Online TPP Program

#Id: 5535

#Unit 7. System Physiology – Animal

The ascending limb, both the thin & the thick segments is virtually impermeable to water, a characteristic that is important for concentrating the urine.

TLS Online TPP Program

#Id: 869

#Unit 13. Methods in Biology

The efficiency of PCR can be calculated by using Y = X (1+ E)n X is number of templates, E is mean PCR efficiency, n is number is PCR cycle. 

 

TLS Online TPP Program

#Id: 5276

#Unit 7. System Physiology – Animal

When the L-type calcium channels become inactivated at about the same time, greatly increased numbers of potassium channels open.

TLS Online TPP Program

#Id: 1682

#Unit 4. Cell Communication and Cell Signaling

Exonuclease trimming sometimes occurs at the VDJ and VJ junctions, causing loss of nucleotides.