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GATE Biotechnology February 2021

Latest questions in this category.

46 questions

GATE Biotechnology February 2021

In a chemostat with a dilution r ate of 0.8 h^-I, the steady state biomass concentration and the specific product format

Calculation based on standard bioprocess principles yields 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: Shuler and Kargi, Bioprocess Engineering: Basic Concepts, chapter on in a chemostat with a dilution, presents kinetics, material balances, reactor design, scale-up criteria and productivity calculations for biotechnological processes, published by Prentice Hall.

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GATE Biotechnology February 2021

If the area of a triangle with the vertices ( k, 0) , ( 2, 0) and ( 0,-2) is 2 square units, the value of k is ____ .

Calculation based on standard general principles yields 0 or 4 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 if the area of a triangle, 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 2021

Decimal reduction time of a bacterial strain is 20 min. Specific death rate constant in min^-1 (rounded off to two decim

Calculation based on standard microbiology principles yields 0.12 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: Madigan et al., Brock Biology of Microorganisms, chapter on decimal reduction time of a bacterial, describes microbial growth phases, physiology, environmental microbiology and industrial applications relevant to biotechnology processes, published by Pearson.

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GATE Biotechnology February 2021

Three balls, colored in blue, green and red, are successively transferred from box A to box B in the order BLUE-GREEN-RE

Calculation based on standard general 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: Griffiths et al., An Introduction to Genetic Analysis, section on three balls colored in blue green, 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 2021

In a random mating population, Y and y are dominant and recessive alleles, respectively. If the frequency of Y allele in

Calculation based on standard genetics principles yields 0.42 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: Pierce, Genetics: A Conceptual Approach, chapter on in a random mating population y, covers Mendelian inheritance, population genetics, allele frequencies, penetrance and quantitative genetics with worked examples, published by W. H. Freeman.

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GATE Biotechnology February 2021

If the values of two random variables (X, Y) are (121, 360) , (242, 364) and(363, 362) , the value of correlation coeffi

Calculation based on standard general principles yields 0.5 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: Griffiths et al., An Introduction to Genetic Analysis, section on if the values of two random, 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 2021

A sedimentation tank of height 100 em is used in a conventional activated sludge process to separate a suspension of sph

Calculation based on standard bioprocess principles yields 1.22 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: Shuler and Kargi, Bioprocess Engineering: Basic Concepts, chapter on a sedimentation tank of height 100, presents kinetics, material balances, reactor design, scale-up criteria and productivity calculations for biotechnological processes, published by Prentice Hall.

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GATE Biotechnology February 2021

A DNA solution of 50 μg mL⁻¹ concentration gives an absorbance of 1.0 at 260 nm. An aliquot of 20 μL from a 50 μL purifi

Calculation based on standard molecular principles yields 1.38 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: Watson et al., Molecular Biology of the Gene, chapter on a dna solution of 50 g, details DNA replication, transcription, repair mechanisms, recombinant DNA technology and sequence analysis methods with experimental evidence, published by Pearson Education.

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GATE Biotechnology February 2021

The enzyme a-amylase used in starch hydrolysis has an affinity constant ( Km) value of 0.005 M . To achieve one-fourth o

Calculation based on standard biochemistry principles yields 1.67 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: Nelson and Cox, Lehninger Principles of Biochemistry, section on the enzyme a amylase used in, 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 2021

The specific growth rate of a mold during exponential phase of its growth in a batch cultivation is 0.15 h^ -1 . If the

Calculation based on standard cell principles yields 13.4 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 the specific growth rate of a, 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 2021

The possible number of Sall restriction sites in a 9 kb double-stranded DNA, with all four bases occurring in equal prop

Calculation based on standard molecular 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: Watson et al., Molecular Biology of the Gene, chapter on the possible number of sall restriction, details DNA replication, transcription, repair mechanisms, recombinant DNA technology and sequence analysis methods with experimental evidence, published by Pearson Education.

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GATE Biotechnology February 2021

Milk flowing through a stainless steel inner tube ( 40 mm inner diameter) of double tube-type heater is to be heated fro

Calculation based on standard bioprocess principles yields 23.7 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: Shuler and Kargi, Bioprocess Engineering: Basic Concepts, chapter on milk flowing through a stainless steel, presents kinetics, material balances, reactor design, scale-up criteria and productivity calculations for biotechnological processes, published by Prentice Hall.

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