Question

70 S ribosomes are seen in

• A. Mitochondria
• B. Bacterial cell
• C. ER
• D. Both A and B

Answer 1

The correct option is D Both A and B

• Ribosomes are known as protein factories because they are the main site of protein synthesis.
• They are composed of ribonucleic acids and proteins.
• A prokaryotic cell and the semi-autonomous organelle (which has its own DNA) i.e, mitochondria and chloroplast have 70S ribosome.
• So, the correct answer is 'Both A and B'.