Multiple Choice Questions - NET, SET, MSc, PhD
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Regular and unique practice MCQs for Section B of CSIR, GATE, GAT-B, ICMR, and DBT. Helpful in various SET, NET, MSc, BSc, Biology exams.

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Solvents and enzymes are found in which of the following categories of microbial products?
Anonymous Quiz
23%
Pharmaceutical chemicals
43%
Commercially valuable chemicals
15%
Food supplements
20%
Alcoholic beverages
Which of the following enzymes cut the DNA molecule at a particular nucleotide sequence?
Anonymous Quiz
71%
restriction endonuclease
15%
exonuclease
11%
ligase
4%
polymerase
Eco R1 cuts the plasmid DNA and the donor DNA such that both the ends are same.
Anonymous Quiz
72%
True
28%
False
Transfection involves the introduction of plasmid hybrid DNA into the host cell.
Anonymous Quiz
77%
True
23%
False
Which of the following carbohydrates are mainly present in whey?
Anonymous Quiz
29%
glucose
35%
lactose
25%
fructose
11%
sucrose
πŸ‘1
Lactobacillus bulgaricus is a homofermentative organism.
Anonymous Quiz
76%
True
24%
False
What temperature is necessary for the production of vinegar?
Anonymous Quiz
27%
43 degree C
35%
60 degree C
24%
10-13 degree C
15%
15-34 degree C
Which of the following product is used for the treatment of pernicious anemia?
Anonymous Quiz
11%
Insulin
38%
Streptokinase-streptodornase
47%
Cobalamin
4%
Sorbose
Microbial fermentation produces D optical isomers of the amino acids.
Anonymous Quiz
68%
True
32%
False
Which of the following raw materials are important for the production of glutamic acid?
Anonymous Quiz
28%
glycerol
41%
corn-steep liquor
21%
tryptone
9%
biotin
Insulin was isolated from which of the following organs of animals?
Anonymous Quiz
16%
small intestine
7%
tongue
75%
pancreas
2%
stomach
Which of the following yeast is used for the production of riboflavin?
Anonymous Quiz
40%
Saccharomyces cerevisiae
26%
Eremothecium ashbyi
28%
Saccharomyces rouxii
5%
Candida utilis
Which among the following are not used as raw materials for alcohol production?
Anonymous Quiz
27%
corn
41%
molasses
24%
whey
8%
grapes
πŸ‘Ž2πŸ‘1
The organism used for alcohol fermentation should have a high tolerance for alcohol.
Anonymous Quiz
77%
True
23%
False
What is the pH required for the production of baker’s yeast?
Anonymous Quiz
12%
1 to 2
43%
4 to 5
36%
7 to 8
9%
10 to 12
The leavening or rising of dough is due to which of the following gases?
Anonymous Quiz
8%
oxygen
75%
carbon dioxide
10%
hydrogen
7%
sulphur dioxide
Which of the following instrument is used for the recovery of yeast cells?
Anonymous Quiz
40%
fermenter
25%
centrifuge
24%
filter press
11%
mash storage
Which of the following product is used as a food condiment?
Anonymous Quiz
41%
Baker’s yeast
18%
Ethanol
11%
Wine
29%
Soy sauce
πŸ‘2
Fermentation of rice is carried out by which of the following microorganisms?
Anonymous Quiz
23%
bacteria
58%
yeasts
17%
molds
1%
protozoa
Which of the following techniques is used to improve penicillin production?
Anonymous Quiz
23%
fed-batch fermentation
37%
submerged-culture technique
24%
continuous fermentation
16%
batch fermentation