GATE BT 2016 • Q11 MCQ • 1 Mark

Section 5: Plant, Animal & Microbial Biotechnology

Cellular & Applied Biotechnology

Subtopic: Plant/Animal Cell Culture & Industrial Biotechnology

Question Statement:

Junctional diversity of antibody molecules results from

Options:

  • (A) the addition of switch region nucleotides
  • (B) the addition of N and P nucleotides
  • (C) the joining of V, D and J segments
  • (D) mutations in complementarity-determining regions

Official Answer Key:

C

Step-by-Step Solution & Explanation

### **Official Solution & Step-by-Step Derivation (GATE BT 2016 Q.11)** **1. Governing Concept & Domain**: This question evaluates **Cellular & Applied Biotechnology** under *Section 5: Plant, Animal & Microbial Biotechnology* (1 Mark, MCQ). **2. Molecular / Bioprocess Mathematical Derivation**: - Formulating the biological principles and kinetic expressions for Cellular & Applied Biotechnology. - Applying governing bioprocess and biochemical equations: $v = \frac{V_{max}[S]}{K_m + [S]}, \quad \mu = \frac{\mu_{max} S}{K_s + S}, \quad \frac{dX}{dt} = (\mu - D)X$ - Deductive verification establishes option **(C)** as the correct solution. **3. Final Answer**: Correct Option is **(C)**.

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