Recombination-repair systems use recombination to replace the double-stranded region that has been damaged.

TLS Online TPP Program

#Id: 6784

#Unit 3. Fundamental Processes

The promoter from which expression is initiated is located within the leader region and generates a single RNA transcript called the pre-crRNA.  In the case of E. coli, the CRISPR is associated with eight cas genes, the products of five of which form a complex called Cascade.

TLS Online TPP Program

#Id: 8184

#Unit 2. Cellular Organization

β oxidation

In mammalian cells, occurs in mitochondria & peroxisomes.

In yeast and plant cells, occurs in peroxisomes.

TLS Online TPP Program

#Id: 6054

#Unit 10. Ecological Principles

Location        Grass land 

Eurasia Steppes 

North America  Prairie

Argentina  Pampas 

South Africa  Veldts

Australia and Newzeland          Tussocks 

Australia                              Down 

TLS Online TPP Program

#Id: 7106

#Unit 6. System Physiology – Plant

Inhibitors of ethylene action

Most of the effects of ethylene can be antagonized by specific ethylene inhibitors. Silver ions (Ag+) applied as silver nitrate (AgNO3) or as silver thiosulfate (Ag(S2O3)2 3–) are potent inhibitors of ethylene action. Silver is very specific; the inhibition it causes cannot be induced by any other metal ion.

TLS Online TPP Program

#Id: 9314

#Unit 4. Cell Communication and Cell Signaling

3 or 4 cGMP molecules must bind to each channel in order to open it; because of this cooperative allosteric interaction, channel opening is very sensitive to small changes in cGMP levels.