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Inside the cell, ribosomes are produced by which of the following?

  1. Oxygen

  2. Induction

  3. Nondisjunction

  4. Nucleolus

The correct answer is: Nucleolus

Ribosomes, the cellular organelles responsible for protein synthesis, are produced in the nucleolus. The nucleolus is a specialized region within the cell nucleus where ribosomal RNA (rRNA) is synthesized and ribosomal subunits are assembled. Options A, B, and C (Oxygen, Induction, Nondisjunction) do not play a role in the production of ribosomes within the cell.