Question

RNA differs from DNA in that RNA _________.

1) contains uracil instead of thymine
2) is single-stranded, whereas DNA is double stranded
3) is an intermediate information transfer, whereas DNA encodes hereditary information
4) contains ribose, whereas DNA contains deoxyribose
5) all of the above

Answer 1

RNA is single-stranded and contains uracil and ribose, distinguishing it from DNA, which is double-stranded and includes thymine and deoxyribose. These structural differences allow RNA to play key roles in protein synthesis.

Step-by-step explanation:

RNA differs from DNA in several key ways:

1. RNA contains uracil instead of thymine.
2. RNA is single-stranded, whereas DNA is double-stranded.
3. RNA serves as an intermediate in information transfer, encoding for protein synthesis, while DNA holds the long-term storage of genetic information.
4. RNA contains the sugar ribose, whereas DNA contains deoxyribose.

Each of these characteristics enables RNA to play distinct roles in the cell, particularly in the process of protein synthesis.