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121
GATE BT 2023 | Question: 28
Match the virus in Group I with the type of genome it contains in Group II. Group I Group II P. T4 bacteriophage 1. dsRNA Q. SARS-CoV-2 2. ssDNA R. Pseudomonas phage $\phi 6$ 3. dsDNA S. $\phi X 174$ bacteriophage 4. ssRNA $\text{P-3, Q-4, R-1, S-2}$ $\text{P-2, Q-1, R-4, S-3}$ $\text{P-4, Q-3, R-2, S-1}$ $\text{P-1, Q-4, R-2, S-3}$
Match the virus in Group I with the type of genome it contains in Group II.Group IGroup IIP. T4 bacteriophage1. dsRNAQ. SARS-CoV-22. ssDNAR. Pseudomonas phage $\phi 6$3. ...
admin
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May 21, 2023
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122
GATE BT 2023 | Question: 29
The event(s) that lead(s) to inactivation of tumor suppressor genes in cancer cells is(are) gene amplification promoter methylation loss of heterozygosity histone acetylation
The event(s) that lead(s) to inactivation of tumor suppressor genes in cancer cells is(are)gene amplificationpromoter methylationloss of heterozygosityhistone acetylation...
admin
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admin
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May 21, 2023
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123
GATE BT 2023 | Question: 30
Methylation of $\mathrm{CpG}$ islands near the promoter of a gene can inhibit transcription by preventing RNA polymerase binding facilitating repressor binding facilitating heterochromatin formation inducing euchromatin formation
Methylation of $\mathrm{CpG}$ islands near the promoter of a gene can inhibit transcription bypreventing RNA polymerase bindingfacilitating repressor bindingfacilitating ...
admin
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May 21, 2023
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124
GATE BT 2023 | Question: 31
Which of the following statement(s) is(are) TRUE about induced pluripotent stem cells? They can self-renew They require specific signals to maintain their stemness They cannot be genetically manipulated They can form organoids in vitro
Which of the following statement(s) is(are) TRUE about induced pluripotent stem cells?They can self-renewThey require specific signals to maintain their stemnessThey cann...
admin
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May 21, 2023
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125
GATE BT 2023 | Question: 32
Which of the following statement(s) is(are) TRUE about fluoroquinolone drugs? They contain quinolone ring(s) They inhibit RNA polymerase They bind to bacterial topoisomerase They bind to $23 S$ rRNA within the $50 \mathrm{~S}$ ribosome subunit
Which of the following statement(s) is(are) TRUE about fluoroquinolone drugs?They contain quinolone ring(s)They inhibit RNA polymeraseThey bind to bacterial topoisomerase...
admin
2.7k
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May 21, 2023
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126
GATE BT 2023 | Question: 33
Which of the following is(are) plant protoplast fusogenic agent(s)? Sodium nitrate Polyvinyl alcohol Polyethylene glycol Bromoxynil
Which of the following is(are) plant protoplast fusogenic agent(s)?Sodium nitratePolyvinyl alcoholPolyethylene glycolBromoxynil
admin
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May 21, 2023
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127
GATE BT 2023 | Question: 34
Direct DNA transfer method(s) used for plant genetic engineering is(are) microparticle bombardment electroporation polyethylene glycol treatment Agrobacterium-mediated transformation
Direct DNA transfer method(s) used for plant genetic engineering is(are)microparticle bombardmentelectroporationpolyethylene glycol treatmentAgrobacterium-mediated transf...
admin
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May 21, 2023
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128
GATE BT 2023 | Question: 35
Which of the following vector(s) is(are) used to clone a DNA fragment of size $220 \mathrm{~kb}$? Bacterial artificial chromosome Yeast artificial chromosome Cosmids $\text{pUC19}$ plasmid
Which of the following vector(s) is(are) used to clone a DNA fragment of size $220 \mathrm{~kb}$?Bacterial artificial chromosomeYeast artificial chromosomeCosmids$\text{p...
admin
2.7k
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May 21, 2023
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129
GATE BT 2023 | Question: 37
Temperature of a reaction with an activation energy value of $15 \mathrm{kcal} \mathrm{mol}^{-1}$ is increased from $300 \mathrm{~K}$ to $310 \mathrm{~K}$. If the value of the ideal gas constant $(\mathrm{R})$ ... $\left(k_{310} / k_{300}\right)$(rounded off to two decimal places) is _____________.
Temperature of a reaction with an activation energy value of $15 \mathrm{kcal} \mathrm{mol}^{-1}$ is increased from $300 \mathrm{~K}$ to $310 \mathrm{~K}$. If the value o...
admin
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May 21, 2023
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130
GATE BT 2023 | Question: 38
E. coli is cultivated in a chemostat operated at a dilution rate of $0.2 h^{-1}$. The values of biomass yield due to oxygen consumption and the steady state biomass concentration are $0.2 g \cdot g^{-1}$ and $10 g \cdot L^{-1}$, respectively. The oxygen transfer rate (in $g \cdot L^{-1} \cdot h^{-1}$) is ______________.
E. coli is cultivated in a chemostat operated at a dilution rate of $0.2 h^{-1}$. The values of biomass yield due to oxygen consumption and the steady state biomass conce...
admin
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May 21, 2023
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131
GATE BT 2023 | Question: 39
Aqueous two-phase extraction is used to recover } \alpha \text {-amylase from a solution. A polypropylene glycol-dextran mixture is added and the solution separates into upper and lower phases. The partition coefficient is $4.0$ and the ratio of upper ... volume is $5.0$. The enzyme recovery or yield (in percentage, rounded off to the nearest integer) is ______________.
Aqueous two-phase extraction is used to recover } \alpha \text {-amylase from a solution. A polypropylene glycol-dextran mixture is added and the solution separates into ...
admin
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May 21, 2023
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132
GATE BT 2023 | Question: 40
E. coli cultivated at $298 \mathrm{~K}$ uptakes an uncharged compound (A) by passive diffusion. The intracellular and extracellular concentrations of $\mathrm{A}$ are $0.001 \mathrm{M}$ and $0.1 \mathrm{M}$, respectively. If the value of the ... $\mathrm{A}$ (rounded off to two decimal places) is ______________.
E. coli cultivated at $298 \mathrm{~K}$ uptakes an uncharged compound (A) by passive diffusion. The intracellular and extracellular concentrations of $\mathrm{A}$ are $0...
admin
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May 21, 2023
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133
GATE BT 2023 | Question: 41
If there are three unrooted trees for four protein sequences, the number of rooted trees for the same number of sequences is _______________.
If there are three unrooted trees for four protein sequences, the number of rooted trees for the same number of sequences is _______________.
admin
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May 21, 2023
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134
GATE BT 2023 | Question: 42
The number of different possible ways of forming five intramolecular disulfide bonds with ten cysteine residues of a protein is ______________.
The number of different possible ways of forming five intramolecular disulfide bonds with ten cysteine residues of a protein is ______________.
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May 21, 2023
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135
GATE BT 2023 | Question: 43
The following schematic diagram shows a chemostat with cell recycle where $\mathrm{F}_0$ and $\mathrm{F}_{\mathrm{r}}$ are the volumetric flow rates (in $L \cdot h^{-1}$ ) of feed and recycle streams, respectively. $\mathrm{X}_1, \mathrm{X}_0$ ... $\mathrm{X}$ (in $g \cdot L^{-1}$, rounded off to one decimal place) is ________________.
The following schematic diagram shows a chemostat with cell recyclewhere $\mathrm{F}_0$ and $\mathrm{F}_{\mathrm{r}}$ are the volumetric flow rates (in $L \cdot h^{-1}$ )...
admin
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May 21, 2023
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136
GATE BT 2023 | Question: 44
An enzyme (E) catalyzes the biochemical reaction $A \rightarrow B$ with $k_{c a t}$ equal to $500 s^{-1}$. If the initial reaction velocity $\left(V_{0}\right)$ is $10 \mu M . s^{-1}$ at the total enzyme concentration $\left[E_{t}\right]$ of $30 n M$ and substrate concentration $[\mathrm{A}]$ of $40 \mu M$, the value of $K_{m}($ in $\mu M)$ is ______________.
An enzyme (E) catalyzes the biochemical reaction $A \rightarrow B$ with $k_{c a t}$ equal to $500 s^{-1}$. If the initial reaction velocity $\left(V_{0}\right)$ is $10 \m...
admin
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May 21, 2023
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137
GATE BT 2023 | Question: 45
DNA sample collected from an unidentified bacterial species $(Y)$ contains $13 \%$ of adenine. The $G+C$ content (in percentage) of $Y$ is ____________.
DNA sample collected from an unidentified bacterial species $(Y)$ contains $13 \%$ of adenine. The $G+C$ content (in percentage) of $Y$ is ____________.
admin
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May 21, 2023
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138
GATE BT 2023 | Question: 46
If $1000 \mathrm{bp}$ of a double-helical DNA weighs $1 \times 10^{-18} \mathrm{gm}$ and distance between two $\mathrm{bp}$ is $0.34 \mathrm{~nm}$, the total amount of DNA (in mg, rounded off to one decimal place) required to stretch from Earth to Moon (assuming the distance between Earth and Moon to be $3,74,000 \mathrm{~km}$ ) is ______________.
If $1000 \mathrm{bp}$ of a double-helical DNA weighs $1 \times 10^{-18} \mathrm{gm}$ and distance between two $\mathrm{bp}$ is $0.34 \mathrm{~nm}$, the total amount of DN...
admin
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May 21, 2023
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139
GATE BT 2023 | Question: 47
A protein has three identical sites arranged at the vertices of an equilateral triangle. If one site is filled with a dye (donor), the measured quantum yield $\left(\phi_{D}\right)$ is $0.5$. Filling one site with a donor dye and a ... of one site filled with donor and the other two sites filled with acceptor dye (rounded off to three decimal places) is _____________.
A protein has three identical sites arranged at the vertices of an equilateral triangle. If one site is filled with a dye (donor), the measured quantum yield $\left(\phi_...
admin
2.7k
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May 21, 2023
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140
GATE BT 2023 | Question: 48
If $A=\left(\begin{array}{ll}1 & 2 \\ 3 & 5\end{array}\right)$, the value of $\left|A^{4}+3 A^{2}-5 A+6 I\right|$ is _____________.
If $A=\left(\begin{array}{ll}1 & 2 \\ 3 & 5\end{array}\right)$, the value of $\left|A^{4}+3 A^{2}-5 A+6 I\right|$ is _____________.
admin
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May 21, 2023
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141
GATE BT 2023 | Question: 49
If $f(x)=\frac{\sin x+\cos x}{\sin x-\cos x}$, the value of $f^{\prime}(x)$ at $x=0$ is ___________.
If $f(x)=\frac{\sin x+\cos x}{\sin x-\cos x}$, the value of $f^{\prime}(x)$ at $x=0$ is ___________.
admin
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May 21, 2023
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142
GATE BT 2023 | Question: 50
If $f(2)=5$ and $(f(x))(f(x+1))=3$ for all real values of $x$, the value of $f(10)$ is ____________.
If $f(2)=5$ and $(f(x))(f(x+1))=3$ for all real values of $x$, the value of $f(10)$ is ____________.
admin
2.7k
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May 21, 2023
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143
GATE BT 2023 | Question: 51
Ten playing cards numbered $1,2,3, \ldots, 10$ are placed face down on a table. One card is drawn at random, its number recorded, and then replaced face down. A card is drawn again at random. The probability that the number on the second draw is greater than the number on the first draw (rounded off to two decimal places) is ___________.
Ten playing cards numbered $1,2,3, \ldots, 10$ are placed face down on a table. One card is drawn at random, its number recorded, and then replaced face down. A card is d...
admin
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May 21, 2023
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144
GATE BT 2023 | Question: 52
The values of the consistency index ' $K$ ' and the flow behavior index ' $n$ ' of a dilatant fluid are 0.415 (in CGS units) and $1.23$, respectively. The value of the apparent viscosity (in $g . \mathrm{cm}^{-1} . \mathrm{s}^{-1}$ ) of this fluid at a shear rate of $60 \mathrm{~s}^{-1}$ (rounded off to the nearest integer) is _____________.
The values of the consistency index ' $K$ ' and the flow behavior index ' $n$ ' of a dilatant fluid are 0.415 (in CGS units) and $1.23$, respectively. The value of the ap...
admin
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May 21, 2023
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145
GATE BT 2023 | Question: 53
An evaporator is insulated using glass wool material of $0.15 \mathrm{~m}$ thickness. The inner most surface and the outer surface of the insulation are at $700{ }^{\circ} \mathrm{C}$ and $80^{\circ} \mathrm{C}$, respectively. The mean thermal ... in $W$ ) through $1.2 \mathrm{~m}^2$ of the evaporator wall surface (rounded off to the nearest integer) is ______________.
An evaporator is insulated using glass wool material of $0.15 \mathrm{~m}$ thickness. The inner most surface and the outer surface of the insulation are at $700{ }^{\circ...
admin
2.7k
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May 21, 2023
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146
GATE BT 2023 | Question: 54
A proportional controller is used to control the temperature of an autoclave from $60^{\circ} \mathrm{C}$ to $130^{\circ} \mathrm{C}$. If the proportional band setting of the controller is $25 \%$, the proportional gain value is ___________.
A proportional controller is used to control the temperature of an autoclave from $60^{\circ} \mathrm{C}$ to $130^{\circ} \mathrm{C}$. If the proportional band setting of...
admin
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May 21, 2023
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147
GATE BT 2023 | Question: 55
A dNTP master-mix is prepared by combining $40 \mu L$ of each $20 \mathrm{mM}$ dNTP stock (dATP, dCTP, dGTP and dTTP). $4 \mu L$ of this dNTP master-mix is added to a PCR mix and the final volume is adjusted to $50 \mu L$. The concentration (in $\mu M$ ) of total dNTPs in the $\text{PCR}$ mix is _____________.
A dNTP master-mix is prepared by combining $40 \mu L$ of each $20 \mathrm{mM}$ dNTP stock (dATP, dCTP, dGTP and dTTP). $4 \mu L$ of this dNTP master-mix is added to a PCR...
admin
2.7k
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May 21, 2023
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148
GATE 2022 -BT
The specific growth rate of a mold during exponential phase of its growth in a batch cultivation is 0.15 h−1 . If the cell concentration at 30 h is 33 g L−1 , the cell concentration in g L−1 (rounded off to the nearest integer) at 24 h is ________.
The specific growth rate of a mold during exponential phase of its growth in a batch cultivation is 0.15 h−1 . If the cell concentration at 30 h is 33 g L−1 ,the cell...
Kusumdabodiya
120
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Kusumdabodiya
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Mar 8, 2023
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149
How yeast used for whisky production is different from the baker’s yeast and brewer’s yeast?
Deepika sharma gq
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Deepika sharma gq
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May 11, 2022
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150
GATE BT 2022 | Question: 1
What is the order of the differential equation given below? $\dfrac{d^{2}y}{dx^{2}} – 6x = 3x^{4} – 2x^{3} + 2$ $1$ $2$ $3$ $4$
What is the order of the differential equation given below?$\dfrac{d^{2}y}{dx^{2}} – 6x = 3x^{4} – 2x^{3} + 2$$1$$2$$3$$4$
Lakshman Bhaiya
1.4k
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Lakshman Bhaiya
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Mar 20, 2022
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151
GATE BT 2022 | Question: 2
If the eigenvalues of a $2 \times 2$ matrix $P$ are $4$ and $2,$ then the eigenvalues of the matrix $P^{-1}$ are $0, 0$ $0.0625, 0.25$ $0.25, 0.5$ $2, 4$
If the eigenvalues of a $2 \times 2$ matrix $P$ are $4$ and $2,$ then the eigenvalues of the matrix $P^{-1}$ are$0, 0$$0.0625, 0.25$$0.25, 0.5$$2, 4$
Lakshman Bhaiya
1.4k
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Lakshman Bhaiya
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Mar 20, 2022
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152
GATE BT 2022 | Question: 3
For a double-pipe heat exchanger, the inside and outside heat transfer coefficients are $100$ and $200 \; \text{W m}^{-2} \text{K}^{-1},$ respectively. The thickness and thermal conductivity of the thin-walled inner pipe are $1 \; \text{cm}$ ... overall heat transfer coefficient is __________ $\text{W m}^{-2} \text{K}^{-1}.$ $0.016$ $42.5$ $62.5$ $310$
For a double-pipe heat exchanger, the inside and outside heat transfer coefficients are $100$ and $200 \; \text{W m}^{-2} \text{K}^{-1},$ respectively. The thickness and ...
Lakshman Bhaiya
1.4k
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Lakshman Bhaiya
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Mar 20, 2022
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153
GATE BT 2022 | Question: 4
Match the media component (Column I) with its role (Column II). ... $\text{P-3, Q-2, R-4, S-1}$ $\text{P-3, Q-4, R-2, S-1}$
Match the media component (Column I) with its role (Column II).$$\begin{array} {ll} \textbf{Column I} & \textbf{Column I} \\ \text{P. Sucrose} & \text{1. Anti-foam agen...
Lakshman Bhaiya
1.4k
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Lakshman Bhaiya
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Mar 20, 2022
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154
GATE BT 2022 | Question: 6
The overall stoichiometry for an aerobic cell growth is $3 \text{C}_{6} \text{H}_{12} \text{O}_{6} + 2.5 \text{NH}_{3} + \text{O}_{2} \rightarrow 1.5 \text{C}_{a} \text{H}_{b} \text{O}_{c} \text{N}_{d} + 3\text{CO}_{2} + 5\text{H}_{2} \text{O}$ What is the ... $\text{C}_{10} \text{H}_{22.33}\text{O}_{6}\text{N}_{1.667}$
The overall stoichiometry for an aerobic cell growth is$3 \text{C}_{6} \text{H}_{12} \text{O}_{6} + 2.5 \text{NH}_{3} + \text{O}_{2} \rightarrow 1.5 \text{C}_{a} \text{H}...
Lakshman Bhaiya
1.4k
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Lakshman Bhaiya
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Mar 20, 2022
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155
GATE BT 2022 | Question: 7
In binomial nomenclature, the name of a bacterial strain is written with the first letter of __________ word(s) being capitalized. first second neither first and second
In binomial nomenclature, the name of a bacterial strain is written with the first letter of __________ word(s) being capitalized.firstsecondneitherfirst and second
Lakshman Bhaiya
1.4k
points
Lakshman Bhaiya
asked
Mar 20, 2022
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156
GATE BT 2022 | Question: 8
The type of nucleic acid present in $\lambda$-phage is Double stranded $\text{DNA}$ Single stranded circular $\text{DNA}$ Single stranded $\text{DNA}$ Single stranded $\text{RNA}$
The type of nucleic acid present in $\lambda$-phage isDouble stranded $\text{DNA}$Single stranded circular $\text{DNA}$Single stranded $\text{DNA}$Single stranded $\text{...
Lakshman Bhaiya
1.4k
points
Lakshman Bhaiya
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Mar 20, 2022
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157
GATE BT 2022 | Question: 9
Which of the following statements about reversible enzyme inhibitors are $\text{CORRECT}?$ ... $\text{Q}$ and $\text{R}$ only $\text{P, Q}$ and $\text{R}$
Which of the following statements about reversible enzyme inhibitors are $\text{CORRECT}?$Uncompetitive inhibitors bind only to the enzyme-substrate complexNon-competitiv...
Lakshman Bhaiya
1.4k
points
Lakshman Bhaiya
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Mar 20, 2022
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158
GATE BT 2022 | Question: 10
Match the component of eukaryotic cells (Column I) with its respective function (Column II). ... $\text{P-3, Q-1, R-2, S-4}$ $\text{P-4, Q-3, R-1, S-2}$
Match the component of eukaryotic cells (Column I) with its respective function (Column II).$$\begin{array}{lll} \textbf{Column I} & & \textbf{Column II} \\ \text{P. Lyso...
Lakshman Bhaiya
1.4k
points
Lakshman Bhaiya
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Mar 20, 2022
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159
GATE BT 2022 | Question: 11
In animal cells, the endogenously produced $\text{miRNAs}$ silence gene expression by base pairing with the $3’$-untranslated region of specific $\text{mRNAs}$ blocking $\text{mRNA}$ synthesis binding to the operator site base pairing with the $3’$ region of specific $\text{rRNAs}$
In animal cells, the endogenously produced $\text{miRNAs}$ silence gene expression bybase pairing with the $3’$-untranslated region of specific $\text{mRNAs}$blocking $...
Lakshman Bhaiya
1.4k
points
Lakshman Bhaiya
asked
Mar 20, 2022
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160
GATE BT 2022 | Question: 12
Terpenoids are made of _________ units. amino acid carbohydrate isoprene triacylglycerol
Terpenoids are made of _________ units.amino acidcarbohydrateisoprenetriacylglycerol
Lakshman Bhaiya
1.4k
points
Lakshman Bhaiya
asked
Mar 20, 2022
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