Nucleic Acids – Chemical Constitution of DNA and RNA, Biological Functions NEET Questions

Organic Chemistry - Biomolecules

Nucleic Acids – Chemical Constitution of DNA and RNA, Biological Functions MCQ Questions


7.
Nucleic acids are made of
A.
Sugars and fats
B.
Amino acids and sugar
C.
Nucleotides
D.
Proteins
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ANSWER :
C. Nucleotides
8.
Which component is found in both DNA and RNA?
A.
Thymine
B.
Uracil
C.
Deoxyribose
D.
Ribose
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ANSWER :
C. Deoxyribose
9.
The backbone of DNA is formed by
A.
Sugar and nitrogenous base
B.
Sugar and phosphate
C.
Phosphate and base
D.
Base only
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ANSWER :
B. Sugar and phosphate
10.
The difference between DNA and RNA is due to the presence of
A.
Thymine in RNA
B.
Deoxyribose in RNA
C.
Thymine in DNA
D.
Uracil in DNA
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ANSWER :
C. Thymine in DNA
11.
In RNA, adenine pairs with
A.
Thymine
B.
Uracil
C.
Cytosine
D.
Guanine
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ANSWER :
B. Uracil
12.
A.
B.
C.
D.
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ANSWER :