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
π2π1
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 bakerβs 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%
Bakerβs yeast
18%
Ethanol
11%
Wine
29%
Soy sauce
π2
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
Which of the following product acts as a substrate for the production of citric acid?
Anonymous Quiz
24%
molasses
48%
corn-steep liquor
18%
barn
10%
oyabeen meal
Which of the following enzymes is used to hydrolyze starch to dextrin?
Anonymous Quiz
22%
invertase
30%
pectinase
43%
amylase
5%
protease
Which of the following enzyme is used in the process of bating?
Anonymous Quiz
23%
invertase
45%
pectinase
19%
amylase
13%
protease
π2
π₯3
Bacterial chromosome has the capacity to code for ____________ different proteins.
Anonymous Quiz
20%
900
36%
300
35%
1500
9%
3500
Populations of cells descending from a single cell are known as ____________
Anonymous Quiz
10%
mutants
51%
clones
24%
wild-type cells
15%
parent cell
The replacement of a purine by a pyrimidine or vice versa is known as ____________
Anonymous Quiz
51%
tranversion
16%
transition
29%
base-pair substitution
4%
missense mutation
In nonsense mutation, the new mRNA codon specifies the same amino acid as that from the original codon.
Anonymous Quiz
59%
True
41%
False
Which of the following mutations result in frameshift mutation?
Anonymous Quiz
26%
missense mutation
19%
transition
22%
transversion
33%
insertion
Which of the following mutagen causes a break in the phosphodiester backbone of the nucleic acid?
Anonymous Quiz
40%
UV light
19%
X-rays
24%
Nitrous acid
17%
base analogs
π1
Base analogs have the same hydrogen-bonding properties as the normal bases.
Anonymous Quiz
71%
True
29%
False