Q.50 The pungency of mustard seeds is primarily due to secondary metabolites such as isothiocyanate and nitrile. The pungency is usually felt only when the seeds are crushed. This is […]
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GATE Biotechnology 2014 Previous Year Papers with Solutions
Matching Plant Sources
Q.49 Match the following plant sources with their secondary metabolites and medical uses. Source plant Secondary metabolites Medical use P. Belladonna 1. Menthol a. Cancer treatment Q. Foxglove 2. Atropine […]
GATE Biotechnology 2014 Previous Year Papers with Solutions
Match the Photoreceptors
Q.48 Match the following photoreceptors with their prosthetic groups and spectral specificity. Photoreceptor Moiety that absorbs light Absorption (nm) P. Phototropin 1. Chromobilin a. 400–500 Q. Cryptochrome 2. FAD b. […]
GATE Biotechnology 2014 Previous Year Papers with Solutions
Population Genetics
Q.47 Consider a population of 10,000 individuals, of which 2500 are homozygotes (PP) and 3000 are heterozygotes (Pp) genotype. The frequency of allele p in the population is _________ . […]
GATE Biotechnology 2014 Previous Year Papers with Solutions
DNA Topology
Q.46 Topological winding number of a 2.0 kb covalently closed circular DNA was found to be 191 with a writhing number of -4. Hence, its LINKING NUMBER and the NUMBER […]
GATE Biotechnology 2014 Previous Year Papers with Solutions
Population Genetics
Q.45 In a relatively large but finite and closed population of sexually reproducing diploid organisms, the frequency of homozygous genotype PP changes from 0.40 to 0.50 and that of pp […]
GATE Biotechnology 2014 Previous Year Papers with Solutions
Identification of Plasmid DNA Forms
Q.44 The plasmid DNA was subjected to restriction digestion using the enzyme EcoRI and analysed on an agarose gel. Assuming digestion has worked (the enzyme was active), match the identity […]
![Q.43 Triose phosphate isomerase converts dihydroxyacetone phosphate (DHAP) to glyceraldehyde-3-phosphate (G-3-P) in a reversible reaction. At 298 K and pH 7.0, the equilibrium mixture contains 40 mM DHAP and 4 mM G-3-P. Assume that the reaction started with 44 mM DHAP and no G-3-P. The standard free-energy change in kJ/mol for the formation of G-3-P [R = 8.315 J/mol·K] is ______.](https://www.letstalkacademy.com/wp-content/uploads/2026/01/slide_43-1.jpg)
GATE Biotechnology 2014 Previous Year Papers with Solutions
Standard Free Energy Change
Q.43 Triose phosphate isomerase converts dihydroxyacetone phosphate (DHAP) to glyceraldehyde-3-phosphate (G-3-P) in a reversible reaction. At 298 K and pH 7.0, the equilibrium mixture contains 40 mM DHAP and 4 […]
GATE Biotechnology 2014 Previous Year Papers with Solutions
Cholera Toxin Increases cAMP Levels
Q.42 Cholera toxin increases cAMP levels by (A) modifying Gi protein (B) modifying Gs protein (C) binding to adenylate cyclase (D) activating cAMP phosphodiesterase Cholera Toxin Increases cAMP Levels by […]
GATE Biotechnology 2014 Previous Year Papers with Solutions
Maximum Specific Growth Rate (μm)
Q.41 Consider a continuous culture provided with a sterile feed containing 10 mM glucose. The steady-state cell density and substrate concentration at three different dilution rates are given in the […]
