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Class 12 Biology — Chapter 9: Biotechnology: Principles and Processes
90 practice questions · 30 Easy · 30 Medium · 30 Hard
Free NCERT-aligned multiple-choice practice for Class 12 Biology, Chapter 9 (Biotechnology: Principles and Processes). Practise timed Easy, Medium and Hard quizzes with instant explanations — built for CBSE Board exams, JEE Main and NEET UG. Here are a few sample questions; sign in free to practise all 90.
Sample questions
Q1Easy
Restriction enzymes:
A.Cut DNA at specific sequences✓ correct
B.Join DNA fragments
C.Replicate DNA
D.Translate proteins
Why
Molecular scissors (e.g., EcoRI).
Q2Medium
Common cloning vector:
A.Plasmid✓ correct
B.Ribosome
C.Mitochondrion
D.Vacuole
Why
Self-replicating circular DNA in bacteria.
Q3Hard
Bioreactors:
A.Large vessels for industrial culture of cells✓ correct
B.Cooking pots
C.Chemical batteries
D.Burners
Why
Optimal conditions for product synthesis.
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