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Question

The two strands of double helix of DNA are linked together by hydrogen bonds between

A
Bases
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B
Deoxysugars
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C
Phosphates
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D
Ribose sugars
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Solution

The correct option is B Bases
The two strands of the double helix of DNA are linked together by hydrogen bonds between nitrogenous bases. The bases, Adenine is bonded to Thymine by two H Bonds while Guanine and Cytosine are bonded by three H-Bonds.
So, the correct answer is 'bases'.

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