Indian Institute of Information Technology 2006 Entrance Exams IIT Entrance Exams JAM BIOTECHNOLOGY TEST - Question Paper
Tuesday, 22 January 2013 11:10Web
Page 5 of 12
(C) undergoes sporulation
(D) all of the above are observed
32. The purification of an antigen using the corresponding antibodies conjugated to agarose is an example of
(A) Affinity chromatography
(B) Gel filtration chromatography
(C) Ion exchange chromatography
(D) Hydrophobic interaction chromatography
33. select the accurate match from A, B, C & D
Group I Group II
P. 5’ capping of mRNA 1. 5-methyl guanosine
Q. Ribozyme 2. Polyadenylate transferase
R. Promoter 3. Spliceosome
S. Poly-(A)+ tail 4. 7-methyl guanosine
5. RNA polymerase
6. Catalytic RNA
7. Polyadenylate polymerase
(A) (B) (C) (D)
P-1 P-4 P-1 P-4
Q-6 Q-6 Q-5 Q-3
R-5 R-5 R-3 R-6
S-2 S-7 S-7 S-2
34. select the accurate match from A, B, C & D Group I Group II P. IgA 1. Basophils
Q. IgE 2. d heavy chain
R. IgG 3. Secretory component
S. IgM 4. Pentamer
5. Crosses placenta
(A) (B) (C) (D)
P-3 P-3 P-2 P-2
Q-1 Q-5 Q-3 Q-1
R-5 R-2 R-5 R-3
S-4 S-1 S-4 S-5
35. select the accurate combination of statements from the subsequent for MHC II protein
P. Has a1, a 2, ß1 and ß two domains
Q. a one and ß one are the polymorphic domains
R. Involved in presenting antigen to cytotoxic T cells
S. Only a chain is glycosylated
(A) QR (B) RS (C) PS (D) PQ
36. Identify the amino acid with uncharged polar side chain
(A) Proline
(B) Tryptophan (C) Glutamine (D) Arginine
37. The A260/A280 ratio of a DNA sample was observed to be 1.2. An increase in this ratio can be found by subjecting the DNA sample to
(A) phenol extraction
(B) trichloroacetic acid treatment
(C) butanol extraction
(D) all of the above can be used
38. Which of the subsequent statements is FALSE for the nitric oxide gas? (A) An intracellular signaling molecule
(B) Deamination of histidine outcomes into nitric oxide production
(C) Stimulates guanylyl cyclase to produce cGMP (D) Can be produced by activated neutrophils
| Earning: Approval pending. |
