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  • The  backbone  of the polynucleotide chain is made up of:  Option: 1 sugar-phosphate, and the bases project inside.<b

The  backbone  of the polynucleotide chain is made up of:
 

Option: 1

sugar-phosphate, and the bases project inside.


Option: 2

carbon-phosphate and the bases project inside


Option: 3

 sugar-phosphate, and the bases project outside.
 


Option: 4

carbon-phosphate and the bases project outside.
 


Answers (1)

best_answer

 

 

As already discussed in Salient Features of Double-Helix Structure of DNA -

  • DNA is made of two polynucleotide chains, where the backbone is constituted by sugar-phosphate, and the bases project inside.
    Hence, the correct option is (a).
Posted by

Ajit Kumar Dubey

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