Biotechnology
GATE BT year:2025 PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–20 of 65. Imported answers require independent review unless marked reviewed.
Question 11
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Koch’s postulate was established by Robert Koch while working on a disease caused by
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Corynebacterium diphtheriae causes diphtheria in humans, only when this bacterium is infected by
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Let
be a bacterial population whose growth is given by
where
is the growth rate constant. If
and
, then the value of
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The minimum value of the function
for
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The diversity in T-cell receptors is generated by
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Which one of the following is true for piRNAs?
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Which one of the following coenzymes is utilised by alanine racemase for the conversion of L-Alanine to D-Alanine?
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Correctly match the following Monosaccharides with their respective Epimers.
Monosaccharide | Epimer |
|---|---|
P. D-mannose | 1. C-3 epimer of D-glucose |
Q. D-allose | 2. C-4 epimer of D-glucose |
R. D-galactose | 3. C-4 epimer of D-mannose |
S. D-talose | 4. C-2 epimer of D-glucose |
| 5. C-5 epimer of D-glucose |
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Correctly match the following Product classes with their representative Products.
Product class | Product |
|---|---|
P. Biofuel | 1. Cellulase |
Q. Bioplast | 2. Cephalosporin |
R. Industrial enzyme | 3. Butanol |
S. Antibiotic | 4. Poly-lactic acid |
| 5. Rituximab |
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Which one of the following hosts is used in mammalian cell culture for the production of glycosylated recombinant therapeutic proteins?
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