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Question

DNA molecule's "backbone" is made up of

A
Either Pentose sugar or Phosphate
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B
Purine and pyrimidine
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C
Both Pentose sugar and phosphate
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D
Pentose sugar, phosphate along with Purine and Pyrimidine
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Solution

The correct option is C Both Pentose sugar and phosphate
The DNA strand's "backbone" is constituted by pentose sugar and phosphate, while the nitrogenous bases project inside forming the bridges between the strands.

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