Fundamentholfundamenthol
NEET2026Chemistry
Q.

The correct statement with regard to the secondary structure of DNA/RNA is :

  1. A

    DNA possesses a double strand helix structure and contains thymine as one of the four bases.

  2. B

    DNA possesses a single strand helix structure and contains uracil as one of the four bases.

  3. C

    RNA possesses a double strand helix structure and contains uracil as one of the four bases.

  4. D

    RNA possesses a single strand helix structure and contains thymine as one of the four bases.

Solution

DNA has a double-stranded helical secondary structure and contains thymine (along with adenine, guanine and cytosine) as one of its four bases. RNA is single-stranded and contains uracil in place of thymine.

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