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.

The scientist who first identified DNA as genetic material was

NEET - 2016

A.

Griffith

B.

Avery

C.

Hershey

D.

Watson

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ANSWER :

B. Avery

2.
The pentose sugar present in RNA is
A.
Glucose
B.
Ribose
C.
Deoxyribose
D.
Fructose
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ANSWER :
B. Ribose
3.

Which enzyme is responsible for DNA strand separation during replication?

NEET - 2018

A.

DNA polymerase

B.

Helicase

C.

Ligase

D.

Topoisomerase

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ANSWER :

B. Helicase

4.
DNA and RNA differ in which nitrogenous base?
A.
Cytosine
B.
Thymine
C.
Adenine
D.
Guanine
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ANSWER :
B. Thymine
5.
The DNA backbone is made of
A.
Phosphates and nitrogen bases
B.
Phosphates and sugars
C.
Sugars and bases
D.
Bases only
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ANSWER :
B. Phosphates and sugars
6.

DNA replication is called

NEET - 2020

A.

Conservative

B.

Semiconservative

C.

Dispersive

D.

None

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ANSWER :

B. Semiconservative