Biotechnology
GATE BT format:nat PYQs
Build your understanding with focused practice from past exam papers.
Questions 101–110 of 201. Imported answers require independent review unless marked reviewed.
Question 22
Open questionBTNAT1 markNeeds review
Decimal reduction time of a bacterial strain is
. Specific death rate constant in
(rounded off to two decimal places) is ________.Log in to check the answer
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The value of
(rounded off to two decimal places) is ________.Log in to check the answer
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A system consists of two reactors, connected by a valve. The first reactor (
) contains an ideal gas
of volume
and the second reactor (
) has an ideal gas
of volume
. Initially, the valve is closed and pressure
in
and
are
and
, respectively. Later, when the valve is open, the system reaches equilibrium. If the temperature
of both the reactors is maintained constant, the final equilibrium pressure in
of the system is ________.Log in to check the answer
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The enzyme
-amylase used in starch hydrolysis has an affinity constant (
) value of
. To achieve one-fourth of the maximum rate of hydrolysis, the required starch concentration in
(rounded off to two decimal places) is ________.Log in to check the answer
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In a Mendel’s dihybrid experiment, a homozygous pea plant with round yellow seeds was crossed with a homozygous plant with wrinkled green seeds. F₁ intercross produced 560 F₂ progeny. The number of F₂ progeny having both dominant traits (round and yellow) is _____.
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A 0.1 mL aliquot of a bacteriophage stock having a concentration of 4×10⁹ phages mL⁻¹ is added to 0.5 mL of E. coli culture having a concentration of 2×10⁸ cells mL⁻¹. The multiplicity of infection is _____.
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If the area of a triangle with the vertices
,
and
is 2 square units, the value of k is _____.Log in to check the answer
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In a chemostat with a dilution rate of 0.8 h⁻¹, the steady state biomass concentration and the specific product formation rate are 8 mol m⁻³ and 0.2 (mol product)(mol biomass)⁻¹ h⁻¹, respectively. The steady state product concentration in mol m⁻³ is _____.
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If the values of two random variables
are (121, 360), (242, 364) and (363, 362), the value of correlation coefficient between X and Y (rounded off to one decimal place) is _____.Log in to check the answer
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The determinant of matrix
is _____.Log in to check the answer
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