Biologyhard · Past Paper
What is the primary function of the 'Nucleolar Organizer Region' (NOR) of a chromosome?
ABinding to the spindle
BCapping the ends of DNA
CSynthesizing ribosomal RNA
DInitiating DNA replication
✓ Correct Answer: C — Synthesizing ribosomal RNA
NORs are chromosomal regions around which the nucleolus forms and where rRNA genes are located.
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