Subtopic: Fundamentals of Biomolecules, enzyme kinetics
Question Statement:
Hydrated synthetic seeds which are produced by ion exchange reaction involve mixing the
somatic embryos in a solution of
Options:
(A) sodium alginate and dropping it in a solution of calcium nitrate
(B) calcium alginate and dropping it in a solution of sodium nitrate
(C) calcium alginate and dropping it in a solution of ammonium nitrate
(D) mannitol and dropping it in a solution of sodium nitrate
2011
BT
Official Answer Key:
A
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE BT 2011 Q.9)**
**1. Governing Concept & Syllabus Classification**:
- **Section**: Biotechnology
- **Question Type**: **MCQ** (1 Mark)
- **Core Topic**: Quantitative & Analytical Aptitude
**2. Detailed Step-by-Step Analytical & Scientific Derivation**:
- **Systematic Conceptual & Option-by-Option Evaluation**:
- Problem Focus: *"Hydrated synthetic seeds which are produced by ion exchange reaction involve mixing the
somatic embryos in a solution of..."*
- **Option (A) [CORRECT]**: *"sodium alginate and dropping it in a solution of calcium nitrate"*
- Validated by canonical biochemistry/biotechnology literature. Specifically matches the molecular mechanism, kinetic model, or empirical finding required.
- **Option (B) [INCORRECT]**: *"calcium alginate and dropping it in a solution of sodium nitrate"* does not satisfy the precise boundary conditions or molecular specificity.
- **Option (C) [INCORRECT]**: *"calcium alginate and dropping it in a solution of ammonium nitrate"* does not satisfy the precise boundary conditions or molecular specificity.
- **Option (D) [INCORRECT]**: *"mannitol and dropping it in a solution of sodium nitrate
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--- PAGE "* does not satisfy the precise boundary conditions or molecular specificity.
**3. Final Answer / Verification Summary**:
- **Official GATE Answer Key**: **A**
- **Scoring Criteria**: 1 Mark (Negative marking: -0.33 marks).
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