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In a DNA molecule, the phosphate group i...

In a DNA molecule, the phosphate group is attached to _______ cabon of the sugar residue of its own nucleotide and _____ carbon of the sugar residue of the next nucleotide by _________ bonds.

A

5', 3', phosphodiester

B

5',3', glycosidic

C

3',5', phosphodiester

D

3', 5', glycosidic

Text Solution

Verified by Experts

The correct Answer is:
A
A deoxyriboncleotide of DNA is formed by cross-linking of three chemicals- deoxyribose sugar `(C_(5)H_(10)O_(4))`, a nitrogen base and phosphoric acid `(H_(3)PO_(4))`. The backbone of a DNA strand is built up of alternate deoxyribose and phosphoric acid grounds. The phosphate group is connected to carbon `5'` of the sugar residue of its own nucleotide and cerbon `3'` of the sugar residue of the next nucleotide by phosphodiester bonds.
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