Question

Of the total RNA in a cell, rRNA constitutes:

• A. 1-10 %.
• B. 10-20%.
• C. 30-50%.
• D. 50-80%.

Answer 1

The correct option is D

50-80%.

The correct option is D.

Explanation for the correct option:

1. A single-stranded polymer chain of ribonucleotides is known as RNA or ribonucleic acid.
2. The four ribonucleotide types involved are AMP, GMP, CMP, and UMP.
3. Ribose and phosphate molecules are alternated to create the strand's backbone.
4. The most prevalent type of RNA in a cell, ribosomal RNA (rRNA), makes up between 70 and 80 percent of all RNA.
5. mRNA and tRNA are further types of RNA.

Final answer: Of the total RNA in a cell, rRNA constitutes 50-80%.