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TLS Online TPP Program

#Question id: 12725

Match the following

DNA form

Helix Direction

Number of bases per helix turn

1. B

a. Left Handed

i. 10

2.  A

b. Right Handed

ii. 12

3.  C

c. Left Handed

iii. 14

4. Z

d. Right Handed

iv. 9

#XL - S Microbiology
  1. 4-a-ii
  2. 1-a-i
  3. 4-b-i
  4. 2-d-iv
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TLS Online TPP Program

#Question id: 1756

#XL - Q Biochemistry

Which of the following is the cytokine that is most involved in the class switch to IgE production?
TLS Online TPP Program

#Question id: 1757

#XL - Q Biochemistry

What is the first event following the production of CH germline transcripts by immunoglobulin genes?
TLS Online TPP Program

#Question id: 1758

#XL - Q Biochemistry

The specificity of antibody secreted by a B-cell may not be the same as that of the surface Ig of the clonal parent because of:
TLS Online TPP Program

#Question id: 1759

#XL - Q Biochemistry

What is the major long-term source of a foreign antigen in the body?
TLS Online TPP Program

#Question id: 1760

#XL - Q Biochemistry

Effector memory T-cells can be distinguished from the central memory T-cells from which they arise by:
TLS Online TPP Program

#Question id: 1761

#XL - Q Biochemistry

Which of the following statements is TRUE of cytokines?