Section 4: Bioprocess Engineering and Process Biotechnology
Mass transfer in bioprocesses (kLa)
Subtopic: Fundamentals of Mass transfer in bioprocesses (kLa)
Question Statement:
At the transcription start site of a gene, any of the four nucleotides can occur with equal probability
P. The Shannon Entropy S, given by S = - Lf 1 Piln pi, for this start site is
Given data: 1n(2) = 0.69
Official Answer Key:
1.35 to 1.42
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE BT 2017 Q.25)**
**1. Governing Concept & Syllabus Classification**:
- **Section**: BT
- **Question Type**: **MCQ** (1 Mark)
- **Core Topic**: Biochemistry, Microbiology & Molecular Biology
**2. Detailed Step-by-Step Analytical & Scientific Derivation**:
- **Systematic Conceptual & Option-by-Option Evaluation**:
- Problem Focus: *"At the transcription start site of a gene, any of the four nucleotides can occur with equal probability
P. The Shannon Entropy S, given by S = - Lf 1 Piln pi, for this start site is
Given data: 1n(2) = 0.69
--- PAGE 7 -..."*
- **Option (C) [CORRECT]**: *"Option C"*
- Validated by canonical biochemistry/biotechnology literature. Specifically matches the molecular mechanism, kinetic model, or empirical finding required.
**3. Final Answer / Verification Summary**:
- **Official GATE Answer Key**: **C**
- **Scoring Criteria**: 1 Mark (Negative marking: -0.33 marks).
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