DNA AND RNA (Search for genetic material and DNA as genetic material; Structure of DNA and RNA; DNA packaging; DNA replication; Central dogma; Transcription...) NEET Questions

Biology - Genetics and Evolution

DNA AND RNA (Search for genetic material and DNA as genetic material; Structure of DNA and RNA; DNA packaging; DNA replication; Central dogma; Transcription...) MCQ Questions


7.
In the Hershey-Chase experiment, which conclusion was drawn?
A.
DNA is transferred from virus to bacteria
B.
Proteins are the genetic material
C.
RNA is the genetic material
D.
Both DNA and protein are genetic material
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ANSWER :
A. DNA is transferred from virus to bacteria
8.
In some viruses, the genetic material is:
A.
DNA or RNA depending on virus
B.
Always RNA
C.
Always protein
D.
Always DNA
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ANSWER :
A. DNA or RNA depending on virus
9.
RNA is unstable as genetic material because:
A.
The 2'-OH group makes it reactive and labile
B.
It is double stranded
C.
It contains thymine
D.
It has phosphate groups
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ANSWER :
A. The 2'-OH group makes it reactive and labile
10.
Which experiment was based on bacterial transformation?
A.
Meselson and Stahl experiment
B.
Griffith's experiment
C.
Beadle and Tatum experiment
D.
Hershey and Chase experiment
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ANSWER :
B. Griffith's experiment
11.
The Watson-Crick model of DNA was proposed in:
A.
1953
B.
1944
C.
1961
D.
1969
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ANSWER :
A. 1953
12.
The two strands of DNA in a double helix are:
A.
Antiparallel and identical
B.
Parallel and identical
C.
Parallel and complementary
D.
Antiparallel and complementary
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ANSWER :
D. Antiparallel and complementary