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the distance between the 2 strands of the DNA are maintained because


( a ) the purines repel each other
( b ) of the helicity of DNA
( c ) always purines come opposite to pyramidines
( d ) the backbone is made of sugar and phosphate

1 Answer

Ans: (C) always purines come opposite to pyramidines
answered Dec 2, 2016 by suganyadevi.p
 
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