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Biotechnology & Applications
NEET Biology • 10 questions • Free on ExamBattle
Practice Questions
Q1
Restriction endonucleases are called "molecular scissors" because they:
- A. Cut proteins into fragments
- B. Cut DNA at specific recognition sequences
- C. Cut RNA
- D. Ligate DNA fragments
Q2
PCR (Polymerase Chain Reaction) requires all of the following EXCEPT:
- A. DNA template
- B. Ribosomes
- C. Primers
- D. Taq polymerase
Q3
Bt cotton is resistant to insects because it produces:
- A. Insecticide chemical
- B. Cry protein (Bt toxin) from Bacillus thuringiensis
- C. More cellulose
- D. Thick cell wall
Q4
Golden rice was engineered to produce:
- A. More protein
- B. β-carotene (Vitamin A precursor)
- C. Higher yield
- D. Pest resistance
Q5
Gel electrophoresis separates DNA fragments based on:
- A. Colour
- B. Size (smaller fragments migrate faster)
- C. Chemical composition
- D. Temperature
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