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UNIT VII: Genetics
- Online Test
UNIT VII: Genetics
TEST : 5
# UNIT VII: Genetics
# TN 12th Botany
Prepare / Learn
Q1.
Sequence of DNA (non-coding) is known as
A.
exon
B.
intron
C.
cistron
D.
none of these
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Answer :
Option B
Explaination / Solution:
No Explaination.
# UNIT VII: Genetics
# TN 12th Botany
Prepare / Learn
Q2.
During transcription holoenzyme RNA polymerase binds to a DNA sequence and the DNA assumes a saddle like structure at that point. What is that sequence called
A.
CAAT box
B.
GGTT box
C.
AAAT box
D.
TATA box
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Answer :
Option D
Explaination / Solution:
No Explaination.
# UNIT VII: Genetics
# TN 12th Botany
Prepare / Learn
Q3.
The successive nucleotides of RNA are covalently linked through
A.
Hydrogen bonds
B.
Phosphodiester bonds
C.
Glycosidic bonds
D.
None of these
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Answer :
Option B
Explaination / Solution:
No Explaination.
# UNIT VII: Genetics
# TN 12th Botany
Prepare / Learn
Q4.
The Okazaki fragments in DNA chain growth
A.
Polymerize in the 3’ - to 5’ direction and forms replication fork
B.
Prove semi conservative nature of DNA replication
C.
Polymerize in the 5’ to 3’ direction and explains 3’ – to – 5’ DNA replication
D.
Result in transcription
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Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT VII: Genetics
# TN 12th Botany
Prepare / Learn
Q5.
Taylor conducted the experiment to prove semiconservative mode of chromosome replication on
A.
Drosophila melanogaster
B.
e-coli
C.
Vinca rosea
D.
vicia faba
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Answer :
Option D
Explaination / Solution:
No Explaination.
# UNIT VII: Genetics
# TN 12th Botany
Prepare / Learn
Q6.
The new strand synthesized in small pieces and then joined together during DNA replication is called
A.
Dead strand
B.
Lagging strand
C.
Leading strand
D.
All of these
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Answer :
Option B
Explaination / Solution:
No Explaination.
# UNIT VII: Genetics
# TN 12th Botany
Prepare / Learn
Q7.
What is incorrect about the following figure representing DNA replication
A.
The direction of DNA replication in strand (i)
B.
The direction of DNA replication in strand (ii)
C.
Discontinuous replication of strand (i)
D.
Discontinuous replication of strand (ii)
View Solution
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Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT VII: Genetics
# TN 12th Botany
Prepare / Learn
Q8.
DNA multiplication is called
A.
Translation
B.
Replication
C.
Transduction
D.
Transcription
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Answer :
Option B
Explaination / Solution:
No Explaination.
# UNIT VII: Genetics
# TN 12th Botany
Prepare / Learn
Q9.
The complete set of chromosome inherited as a single unit from one parent is known as
A.
Genome
B.
Linkage
C.
Gene pool
D.
Genotype
View Solution
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Answer :
Option A
Explaination / Solution:
No Explaination.
# UNIT VII: Genetics
# TN 12th Botany
Prepare / Learn
Q10.
The mobile genetic element is
A.
Transposon
B.
Mutation
C.
Endonuclease
D.
Variation
View Solution
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Answer :
Option A
Explaination / Solution:
No Explaination.
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