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The correct statement regarding RNA and DNA, respectively is

1. The sugar component in RNA is arabinose and the sugar component in DNA is 2'-deoxyribose.
2. The sugar component in RNA is ribose and the sugar component in DNA is 2'-deoxyribose.
3. The sugar component in RNA is arabinose and the sugar component in DNA is arabinose.
4. The sugar component in RNA is 2'-deoxyribose and the sugar component in DNA is arabinose.

Correct answer: The sugar component in RNA is ribose and the sugar component in DNA is 2'-deoxyribose.

Solution

RNA contains ribose as its sugar, while DNA contains 2'-deoxyribose, which lacks one oxygen atom at the 2' position compared to ribose.

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