A:-B-cells
B:-Helper T-cells
C:-Cytotoxic T-cells
D:-Activated macrophage
Correct Answer:- Option-C
Question69:-The circulation of a two month old breast fed baby will contain
‏یھ‎ ۵۳۳

Question70:-An example of a known oncogenic virus is
A:-Herpes Zoster
B:-HIV-2
C:-Epstein-Barr
D:-Proteus Mirabili:
Correct Answer:- Option-C

Question71:-Which one of the following mast cell products is not performed and there fore has to be newly synthesized?
A:-Histamine
B:-Prostaglandin *"D_2""

C:-Heparin
D:-Neutral protease
Correct Answer:- Option-B

Question72:-The mononuclear phagocyte system does not include
A:-Monocyte
B:-Kuffer cells
C:-Macrophages
D:-Endothelial cells
Correct Answer:- Option-D

Question73:-Unwinding of DNA is done by
A:-Helicase
B:-Ligase
C:-Hexonuclease
D:-Topoisomerase
Correct Answer:- Option-A

Question74:-The distortion in DNA helix is due to pyrimidine dimer formation is called as
കാ 6८
B:-SS breaks
C:Kink
D:-None of these
Correct Answer:- Option-C

Question75:-The end products of translation are
A:-Aminoacids
B:-Lipids
C:-Polypeptide
D:-All these
Correct Answer:- Option-C

Question76:-The lac operon in E. coli is involved in
A:-Regulating the expression of gene
B:-Controlling DNA replication
C:-Regulating the translation of mRNA
D:-Controlling the formation of ribosomes
Correct Answer:- Option-A

Question77:-t-test was (student's t-test} was developed by
A:-William Gosset

cher

C:-George Snedecor

D:-Karl Pearson

Correct Answer:- Option-A