Question

DNA is a better molecule for long-term storage of genetic information than RNA because

A. the deoxyribose sugar stabilizes DNA chains.

B. the uracil in DNA is less easily mutated.

C. DNA is able to make complex folded secondary structures.

D. DNA is able to autocatalyze its own repair.

Answer 1

DNA is a better molecule for long-term storage of genetic information than RNA because the deoxyribose sugar stabilizes DNA chains.

Step-by-step explanation:

The primary reason why DNA is a better molecule for long-term storage of genetic information than RNA is because the deoxyribose sugar stabilizes DNA chains.

DNA is made up of nucleotides, which consist of a sugar, a nitrogen-containing base, and a phosphate group. The sugar in DNA is deoxyribose, while the sugar in RNA is ribose. The deoxyribose sugar in DNA provides stability by reducing the chances of chemical reactions and degradation.

For example, the removal of the 2'-hydroxyl group in deoxyribose makes DNA more resistant to hydrolysis, so it can persist in a cell for much longer periods of time compared to RNA.