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DNA

Number of hyd...

Question

Number of hydrogen bonds between guanine and thymine is:

A

0

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B

3

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C

1

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D

2

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Solution

The correct option is A 0
Number of hydrogen bonds present between $G$ and $T$ is 0 as G does not pair up with T.

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Q. The number of hydrogen bonds between Guanine and Cytosine; and between Adenine and Thymine in DNA are:

STATEMENT-1 : Guanine unites with cytosine with three hydrogen bonds but it forms only one hydrogen bond with thymine.
STATEMENT-2 : Guanine and cytosine are purines while that of thymine is a pyrimidine.

Q. Adenine and thymine are held together by .......... hydrogen bonds, while guanine and cytosine are linked by .......... hydrogen bonds.

Q. Assertion :The two strands of DNA are complementary to each other. Reason: Adenine specifically forms hydrogen bonds with guanine whereas cytosine forms hydrogen bonds with thymine.

Q. The number of hydrogen bonds between adenine and thymine in a DNA molecule is

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