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GATE Biotechnology February 2018

Latest questions in this category.

47 questions

GATE Biotechnology February 2018

A microbial strain is cultured in a 100 L stirred fermenter for secondary metabolite production. If the specific rate of

Calculation based on standard cell principles yields 0.17 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Alberts et al., Molecular Biology of the Cell, section on a microbial strain is cultured in, discusses cell structure, membrane organization, cell cycle regulation and intracellular signaling with detailed illustrations, published by Garland Science.

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GATE Biotechnology February 2018

The variable 𝑧 has a standard normal distribution. If 𝑃(0 ≤ 𝑧 ≤ 1) = 0.34, then 𝑃(𝑧^2 > 1) is equal to (up to two decima

Calculation based on standard general principles yields 0.32 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Griffiths et al., An Introduction to Genetic Analysis, section on the variable has a standard normal, provides foundational concepts, mathematical derivations, probability calculations and analytical methods for biotechnology problem solving, published by W. H. Freeman.

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GATE Biotechnology February 2018

In a chemostat, the feed flow rate and culture volume are 100 ml/h and 1.0 L, respectively. With glucose as substrate, t

Calculation based on standard biochemistry principles yields 1 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Nelson and Cox, Lehninger Principles of Biochemistry, section on in a chemostat the feed flow, explains metabolic pathways, enzyme mechanisms, structural biochemistry and thermodynamic principles governing biomolecular transformations, published by W. H. Freeman and Company.

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GATE Biotechnology February 2018

A single stem cell undergoes 10 asymmetric cell divisions. The number of stem cells at the end is _________

Calculation based on standard cell principles yields 1 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Alberts et al., Molecular Biology of the Cell, section on a single stem cell undergoes 10, discusses cell structure, membrane organization, cell cycle regulation and intracellular signaling with detailed illustrations, published by Garland Science.

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GATE Biotechnology February 2018

An aqueous solution containing 6.8 mg/L of an antibiotic is extracted with amyl acetate. If the partition coefficient of

Calculation based on standard general principles yields 2 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Griffiths et al., An Introduction to Genetic Analysis, section on an aqueous solution containing 6 8, provides foundational concepts, mathematical derivations, probability calculations and analytical methods for biotechnology problem solving, published by W. H. Freeman.

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GATE Biotechnology February 2018

Mammalian cells in active growth phase were seeded at a density of 1x10^5 cells/ml. After 72 hours, 1x10^6 cells/ml were

Calculation based on standard cell principles yields 21.67 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Alberts et al., Molecular Biology of the Cell, section on mammalian cells in active growth phase, discusses cell structure, membrane organization, cell cycle regulation and intracellular signaling with detailed illustrations, published by Garland Science.

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GATE Biotechnology February 2018

A rod shaped bacterium has a length of 2 μm, diameter of 1 μm and density the same as that of water. If proteins constit

Calculation based on standard biochemistry principles yields 3x10^6 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Nelson and Cox, Lehninger Principles of Biochemistry, section on a rod shaped bacterium has a, explains metabolic pathways, enzyme mechanisms, structural biochemistry and thermodynamic principles governing biomolecular transformations, published by W. H. Freeman and Company.

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GATE Biotechnology February 2018

Genomic DNA isolated from a bacterium was digested with a restriction enzyme that recognizes a 6-base pair (bp) sequence

Calculation based on standard biochemistry principles yields 4096 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Nelson and Cox, Lehninger Principles of Biochemistry, section on genomic dna isolated from a bacterium, explains metabolic pathways, enzyme mechanisms, structural biochemistry and thermodynamic principles governing biomolecular transformations, published by W. H. Freeman and Company.

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GATE Biotechnology February 2018

Consider a simple uni-substrate enzyme that follows Michaelis-Menten kinetics. When the enzyme catalyzed reaction was ca

Calculation based on standard biochemistry principles yields 5 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Nelson and Cox, Lehninger Principles of Biochemistry, section on consider a simple uni substrate enzyme, explains metabolic pathways, enzyme mechanisms, structural biochemistry and thermodynamic principles governing biomolecular transformations, published by W. H. Freeman and Company.

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GATE Biotechnology February 2018

First order deactivation rate constants for soluble and immobilized amyl glucosidase enzyme are 0.03 min-1 and 0.005 min

Calculation based on standard biochemistry principles yields 6 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Nelson and Cox, Lehninger Principles of Biochemistry, section on first order deactivation rate constants for, explains metabolic pathways, enzyme mechanisms, structural biochemistry and thermodynamic principles governing biomolecular transformations, published by W. H. Freeman and Company.

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GATE Biotechnology February 2018

At the end of a batch culture, glucose solution is added at a flow rate of 200 ml/h. If the culture volume after 2 h of

Calculation based on standard biochemistry principles yields 600 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Nelson and Cox, Lehninger Principles of Biochemistry, section on at the end of a batch, explains metabolic pathways, enzyme mechanisms, structural biochemistry and thermodynamic principles governing biomolecular transformations, published by W. H. Freeman and Company.

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GATE Biotechnology February 2018

An automobile travels from city A to city B and returns to city A by the same route. The speed of the vehicle during the

72 is correct because it matches established general principles where 72 represents the functional mechanism. Alternatives such as 73, 74 contradict experimental evidence and standard textbook descriptions. This reasoning aligns with standard definitions, laboratory observations and quantitative analysis commonly taught in biotechnology curricula.

Ref: Griffiths et al., An Introduction to Genetic Analysis, section on an automobile travels from city a, provides foundational concepts, mathematical derivations, probability calculations and analytical methods for biotechnology problem solving, published by W. H. Freeman.

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