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UNIT VIII: Biotechnology
- Online Test
UNIT VIII: Biotechnology
TEST : 1
# UNIT VIII: Biotechnology
# TN 12th Botany
Prepare / Learn
Q1.
What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis?
A.
The smaller the fragment size, the farther it moves.
B.
Positively charged fragments move to farther end.
C.
Negatively charged fragments do not move.
D.
The larger the fragment size, the farther it moves.
View Solution
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Answer :
Option A
Explaination / Solution:
No Explaination.
# UNIT VIII: Biotechnology
# TN 12th Botany
Prepare / Learn
Q2.
Stirred-tank bioreactors have been designed for
A.
Purification of product.
B.
Addition of preservatives to the product
C.
Availability of oxygen throughout the process
D.
Ensuring anaerobic conditions in the culture vessel.
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Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT VIII: Biotechnology
# TN 12th Botany
Prepare / Learn
Q3.
Which of the following is not a component of downstream processing?
A.
Separation
B.
Purification
C.
Preservation
D.
Expression
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Answer :
Option D
Explaination / Solution:
No Explaination.
# UNIT VIII: Biotechnology
# TN 12th Botany
Prepare / Learn
Q4.
Which of the following is not a feature of the plasmids?
A.
Transferable
B.
Single-stranded
C.
Independent replication
D.
Circular structure
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Answer :
Option B
Explaination / Solution:
No Explaination.
# UNIT VIII: Biotechnology
# TN 12th Botany
Prepare / Learn
Q5.
Which of the following is not required for nay of the techniques of DNA fingerprinting available at present?
A.
Restriction enzymes
B.
DNA-DNA hybridization
C.
Polymerase chain reaction
D.
Zinc finger analysis
View Solution
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Answer :
Option D
Explaination / Solution:
No Explaination.
# UNIT VIII: Biotechnology
# TN 12th Botany
Prepare / Learn
Q6.
Which vector can clone only a small fragment of DNA?
A.
Bacterial artificial chromosome
B.
Yeast artificial chromosome
C.
Plasmid
D.
Cosmid
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Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT VIII: Biotechnology
# TN 12th Botany
Prepare / Learn
Q7.
The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of
A.
Insertional inactivation of alpha galactosidase in recombinant bacteria.
B.
nactivation of glycosidase enzyme in recombinant bacteria.
C.
Non-recombinant bacteria containing beta galactosidase.
D.
Insertional inactivation of alpha galactosidase in non-recombinant bacteria.
View Solution
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Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT VIII: Biotechnology
# TN 12th Botany
Prepare / Learn
Q8.
During the process of isolation of DNA, chilled ethanol is added to
A.
Precipitate DNA
B.
Break open the cell to release DNA
C.
Facilitate action of restriction enzymes
D.
Remove proteins such as histones.
View Solution
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Answer :
Option A
Explaination / Solution:
No Explaination.
# UNIT VIII: Biotechnology
# TN 12th Botany
Prepare / Learn
Q9.
For transformation, micro-particles coated with DNA to be bombarded with gene gun are made up of
A.
Silver or platinum
B.
Platinum or zinc
C.
Silicon or platinum
D.
Gold or tungsten
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Answer :
Option D
Explaination / Solution:
No Explaination.
# UNIT VIII: Biotechnology
# TN 12th Botany
Prepare / Learn
Q10.
Biolistics (gene-gun) is suitable for
A.
disarming pathogen vectors
B.
transformation of plant cells
C.
constructing recombinant DNA by joining with vectors
D.
DNA fingerprinting
View Solution
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Answer :
Option B
Explaination / Solution:
No Explaination.
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