The presence of the bromo substituent allows the base to mispair with guanine via the enol tautomer

TLS Online TPP Program

#Id: 1904

#Unit 4. Cell Communication and Cell Signaling

B cell properties

1.    They are APCs

2.    They can express MHC2

3.    Have surface marker  CD19

4.    Antibodies at surface of b cell – IgM, IgD

5.    Part of Adaptive immunity

6.    B cell convert into plasma cell

TLS Online TPP Program

#Id: 1668

#Unit 4. Cell Communication and Cell Signaling

Live, Attenuated Vaccines Microorganisms can be attenuated or disabled so that they lose their ability to cause significant disease but retain their capacity for transient growth within an inoculated host.

TLS Online TPP Program

#Id: 3044

#Unit 3. Fundamental Processes

In mammalian systems (where the DNA polymerase does not have a 5'- 3' exonuclease

activity), Okazaki fragments are connected by a two-step process. Synthesis of an Okazaki fragment displaces the RNA primer of the preceding fragment in the form of a "flap’’.

The base of the flap is cleaved by the enzyme FEN1 (flap endonuclease 1 ) .

TLS Online TPP Program

#Id: 5440

#Unit 7. System Physiology – Animal

During overshoot 

the voltage-gated K+  channels open & contribute to repolarization

TLS Online TPP Program

#Id: 6428

#Unit 8. Inheritance Biology