Question

What are some differences between DNA and RNA?

a) DNA has ribose sugar, RNA has deoxyribose sugar
b) DNA is single-stranded, RNA is double-stranded
c) DNA contains thymine, RNA contains uracil
d) DNA carries out translation, RNA carries out transcription

Answer 1

DNA and RNA differ in sugar content, strand structure, and nitrogenous bases; DNA has deoxyribose, is double-stranded, and contains thymine, while RNA has ribose, is single-stranded, and contains uracil. Hence, option (c) is correct.

Step-by-step explanation:

There are several key differences between DNA and RNA:

• DNA contains the sugar deoxyribose, whereas RNA contains the sugar ribose.
• DNA is generally double-stranded forming a helical structure, while RNA is usually single-stranded.
• One of the nitrogenous bases in DNA is thymine, but in RNA, thymine is replaced by uracil.

Through these differences, DNA and RNA play distinct roles in genetic expression with DNA serving as the long-term storage of genetic information, and RNA being actively involved in the protein synthesis process as well as various regulatory functions.