Question
A major difference between DNA and RNA is(1 point)
Responses
Only DNA contains sugar
Only DNA contains sugar
Only RNA contains Guanine
Only RNA contains Guanine
Only DNA is double-stranded
Only DNA is double-stranded
Only RNA has deoxyribose
Only RNA has deoxyribose
The major difference between DNA and RNA is that only DNA is double-stranded.
To determine the major difference between DNA and RNA, we need to compare their characteristics.
DNA, or deoxyribonucleic acid, is a molecule that contains genetic information that is essential for the development, functioning, and reproduction of living organisms. It consists of a double-stranded helix formed by two complementary strands, made up of nucleotides containing the sugar deoxyribose. The four nitrogenous bases present in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).
On the other hand, RNA, or ribonucleic acid, is also a molecule involved in the transfer and interpretation of genetic information. It is usually single-stranded and contains the sugar ribose. RNA also consists of nucleotides, but the nitrogenous bases in RNA are adenine (A), uracil (U) instead of thymine, cytosine (C), and guanine (G).
Based on these characteristics, we can conclude that the major difference between DNA and RNA is that only DNA is double-stranded, while RNA is usually single-stranded. Therefore, the correct response is "Only DNA is double-stranded."