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Class 12 Biology — Chapter 10: Biotechnology and its Applications
90 practice questions · 30 Easy · 30 Medium · 30 Hard
Free NCERT-aligned multiple-choice practice for Class 12 Biology, Chapter 10 (Biotechnology and its Applications). 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
Bt cotton resists:
A.Bollworm pests✓ correct
B.Drought
C.Cold
D.Salinity only
Why
Bt protein toxic to insects.
Q2Medium
PCR is used in diagnostics for:
A.Detecting pathogen DNA quickly✓ correct
B.Surgery
C.Sterilisation
D.Anaesthesia
Why
e.g., HIV, tuberculosis, COVID detection.
Q3Hard
Golden rice is engineered to produce:
A.β-carotene (Vitamin A precursor)✓ correct
B.Iron only
C.Protein only
D.Sugar
Why
Combats Vitamin A deficiency.
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