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Cell: The Unit of Life
Nucleus and Nucleolus
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Concepts tested
- Nucleolus as site of ribosome synthesis
All Questions
2002 AIPMT 1 question
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Ribosomes are produced in :The nucleolus is a spherical body inside the nucleus, not bounded by a membrane.
It is the site of active synthesis of ribosomal RNA (rRNA). The rRNA combines with ribosomal proteins (imported from the cytoplasm) to form the ribosomal subunits.
These subunits then pass out through the nuclear pores into the cytoplasm, where they assemble into functional ribosomes.
So ribosomes are produced in the nucleolus.