MCQ practice · SSC Biology Board questions · Chapter 2: Cells and Tissues of Organisms
What is the nucleolus made of?
Think it through first, then pick an option.
- a DNA and protein
- b RNA and protein
- c Protein and lipid
- d Lipid and polysaccharide
Answer and explanation
Correct answer: b RNA and protein
The nucleolus is made of RNA and protein.
Why the other options are wrong
- a DNA and protein: DNA and protein build chromatin, not the nucleolus.
- c Protein and lipid: Protein and lipid build a membrane, not the nucleolus.
- d Lipid and polysaccharide: Lipid and polysaccharide are not the stuff of the nucleolus.
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