C) Ribosomal DNA (rDNA) consists of repeated sequences that encode the RNA components of ribosomes, which are essential for protein synthesis in all living organisms. These sequences are not synthesized by ribosomes nor are they exclusive to the nucleolus or ribosomes. They do not code for ribosomal proteins directly, nor are they variable sequences for different ribosomes.

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Ribosomal DNA Is

Question 11

Multiple Choice

Ribosomal DNA is

A) synthesised by ribosomes in the nucleolus of a cell.
B) found only in the nucleolus of ribosomes.
C) repeated DNA sequences that encode the RNA components of ribosomes.
D) the DNA that codes for the ribosomal proteins.
E) variable DNA sequences that are required for the many different ribosomes found in organisms.

Correct Answer: