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


1.
Who discovered the transforming principle in Streptococcus pneumoniae?
A.
Watson and Crick
B.
Hershey and Chase
C.
Avery, MacLeod and McCarty
D.
Frederick Griffith
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ANSWER :
D. Frederick Griffith
2.
The transforming principle of Griffith's experiment was identified as DNA by:
A.
Watson and Crick
B.
Avery, MacLeod and McCarty
C.
Hershey and Chase
D.
Meselson and Stahl
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ANSWER :
B. Avery, MacLeod and McCarty
3.
The Hershey-Chase experiment used which radioactive isotopes?
A.
I-131 and Co-60
B.
C-14 and H-3
C.
P-32 and S-35
D.
N-15 and N-14
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ANSWER :
C. P-32 and S-35
4.
Hershey and Chase worked with which organism?
A.
Drosophila melanogaster
B.
Escherichia coli infected by bacteriophage T2
C.
Neurospora crassa
D.
Streptococcus pneumoniae
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ANSWER :
B. Escherichia coli infected by bacteriophage T2
5.
Which of the following is NOT a property of genetic material?
A.
It should provide scope for slow changes for evolution
B.
It should be chemically and structurally stable
C.
It should be present only in nucleus
D.
It should be able to replicate
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ANSWER :
C. It should be present only in nucleus
6.
Why is DNA preferred over RNA as the genetic material?
A.
DNA is more stable due to absence of 2'-OH group and presence of thymine
B.
DNA cannot mutate
C.
DNA has uracil
D.
DNA is single stranded
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ANSWER :
A. DNA is more stable due to absence of 2'-OH group and presence of thymine