1. A peculiar cytochrome is observed in bacteria and it can react with molecular oxygen, what is it?
a. Cyt b
b. Cyt c
c. Cyt d
d. Cyt o
Ans: D
2. The genetic material in HIV is
a. ds DNA
b. ss DNA
c. s RNA
d. None of these
Ans: A
3. Which one of the following mutagens act only on replicating DNA?
a. Ethidium bromide
b. Nitrosogeranidine
c. Acridine orange
d. None of above
Ans: C
4. Poly A tail is frequently found in
a. Histone in RNA
b. Bacterial RNA
c. eukaryotic RNA
d. TRNA
Ans: C
5. Which of the following is an example of RNA virus?
a. SV 40
b. T4 phage
c. Tobacco mosaic virus
d. Adeno virus
Ans: C
6. Genomic DNA is extracted, broken into fragments of reasonable size by a restriction endonuclease and then inserted into a cloning vector to generate chimeric vectors. The cloned fragments are called
a. Clones
b. Genomic library
c. mRNA
d. None of these
Ans: B
7. Transgenic animals are produced when GH gene fused with
a. MT gene
b. GH
c. GRF
d. FIX
Ans: A
8. In which medium the hydridoma cells grow selectively?
a. Polyethylene glycol
b. Hypoxanthine aminopterin thyminine
c. Hypoxathing-guaning phosphoribosyl transferase
d. Both b and c
Ans: B
9. The enzymes which are commonly used in genetic engineering are
a. Exonuclease and ligase
b. Restriction endonuclease and polymerase
c. Ligase and polymerase
d. Restriction endonuclease and ligase
Ans: A
10. A successful hybridoma was produced by fusing
a. Plasma cells and plasmids
b. Plasma cells and myeloma cells
c. Myeloma cells and plasmids
d. Plasma cells and bacterial cells
Ans: B
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a. Cyt b
b. Cyt c
c. Cyt d
d. Cyt o
Ans: D
2. The genetic material in HIV is
a. ds DNA
b. ss DNA
c. s RNA
d. None of these
Ans: A
3. Which one of the following mutagens act only on replicating DNA?
a. Ethidium bromide
b. Nitrosogeranidine
c. Acridine orange
d. None of above
Ans: C
4. Poly A tail is frequently found in
a. Histone in RNA
b. Bacterial RNA
c. eukaryotic RNA
d. TRNA
Ans: C
5. Which of the following is an example of RNA virus?
a. SV 40
b. T4 phage
c. Tobacco mosaic virus
d. Adeno virus
Ans: C
6. Genomic DNA is extracted, broken into fragments of reasonable size by a restriction endonuclease and then inserted into a cloning vector to generate chimeric vectors. The cloned fragments are called
a. Clones
b. Genomic library
c. mRNA
d. None of these
Ans: B
7. Transgenic animals are produced when GH gene fused with
a. MT gene
b. GH
c. GRF
d. FIX
Ans: A
8. In which medium the hydridoma cells grow selectively?
a. Polyethylene glycol
b. Hypoxanthine aminopterin thyminine
c. Hypoxathing-guaning phosphoribosyl transferase
d. Both b and c
Ans: B
9. The enzymes which are commonly used in genetic engineering are
a. Exonuclease and ligase
b. Restriction endonuclease and polymerase
c. Ligase and polymerase
d. Restriction endonuclease and ligase
Ans: A
10. A successful hybridoma was produced by fusing
a. Plasma cells and plasmids
b. Plasma cells and myeloma cells
c. Myeloma cells and plasmids
d. Plasma cells and bacterial cells
Ans: B
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