Junctional diversity- P and N nucleotides  addition 

TLS Online TPP Program

#Id: 5198

#Unit 7. System Physiology – Animal

Thrombin is a serine protease that is formed from its circulating precursor, prothrombin, by the action of activated factor X.

TLS Online TPP Program

#Id: 3243

#Unit 3. Fundamental Processes

Adenine and guanine are also subject to spontaneous deamination. Deamination converts adenine to hypoxanthine, which hydrogen-bonds to cytosine rather than to thymine; guanine is converted to xanthine,

which continues to pair with cytosine, although with only two hydrogen bonds.

TLS Online TPP Program

#Id: 5625

#Unit 7. System Physiology – Animal

The receptor (Pacinian corpuscle) converts mechanical energy into an electrical response, the magnitude is proportional to the intensity of the stimulus. Thus, the responses are described as graded potentials rather than all-or-none

TLS Online TPP Program

#Id: 9080

#Unit 4. Cell Communication and Cell Signaling

Binding of acetylcholine triggers the opening of an associated K+ channel  in the plasma membrane via the Gβγ subunit of a Gi protein

TLS Online TPP Program

#Id: 638

#Unit 3. Fundamental Processes

Nitrous acid induces transitions in both directions, A:T ↔ G:C.