The length and breadth of a rectangular field are in the ratio 7 :4. A path 4 m wide running all around outside has an area of 416 m2 . The breadth (in m) of the field is

TLS Online TPP Program

#Question id: 1628

#Unit 4. Cell Communication and Cell Signaling

The classical and alternative pathways meet at complement component:

TLS Online TPP Program

#Question id: 1629

#Unit 4. Cell Communication and Cell Signaling

Clonal selection occurs when antigen is encountered by:

TLS Online TPP Program

#Question id: 1630

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is TRUE of plasma cells?

TLS Online TPP Program

#Question id: 1631

#Unit 4. Cell Communication and Cell Signaling

Specific antibodies are readily detectable in serum following primary contact with antigen after:

TLS Online TPP Program

#Question id: 1632

#Unit 4. Cell Communication and Cell Signaling

A single plasma cell secretes:

TLS Online TPP Program

#Question id: 1633

#Unit 4. Cell Communication and Cell Signaling

Immunological memory can be transferred experimentally by: