Question

    Which type of RNA has the highest percentage in a

    typical eukaryotic cell?
    A rRNA Correct Answer Incorrect Answer
    B mRNA Correct Answer Incorrect Answer
    C tRNA Correct Answer Incorrect Answer
    D snRNA Correct Answer Incorrect Answer

    Solution

    Ribosomal RNA (rRNA) makes up 80-85% of total cellular RNA. It plays a key role in forming ribosomes, the sites of protein synthesis. Key Points: • rRNA (80-85%)> tRNA (10-15%) > mRNA (3-5%). • rRNA is synthesized in the nucleolus. • Forms the structural and catalytic core of ribosomes.

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