Ribosomes are known as protein factory and are actively involved in the synthesis of protein. Ribosomes are found in the cytosol and in the semi-autonomous organelles, such as mitochondria and chloroplasts. Related Theory Ribosomes either occur singly (monosomes) or in cluster (polysomes). Apart from ribosomal RNA (rRNA), the other two forms of RNA required for protein synthesis are: messenger RNA (mRNA), which carries coding information from DNA, and transfer RNA (tRNA), which carries amino acids. Ribosomes use the information in mRNA to direct the synthesis of a protein. In prokaryotes, during proteins synthesis, many ribosomes line up and join the mRNA to form a string of ribosomes called polyribosome or polysome.
Protein Synthesis in an animal cell occurs:
NEET UG 2005 — Zoology Molecular Basis of Inheritance
2005mcqmedium
Protein Synthesis in an animal cell occurs:
Official previous-year question
Held on 30 Apr 2005 · Verified 9 Jul 2026.
Options
- A
only on the ribosomes present in cytosol
- B
only on ribosome attached to the nuclear envelope and endoplasmic reticulum
- C
on ribosome present in the nucleolus as well as in cytoplasm
- D
on ribosomes present in cytoplasm as well as in mitochondria.
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