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81
GATE BT 2023 | Question: 14
Which of the following methods are used for detection of DNA and RNA, respectively? Southern and Northern blotting Southern and Western blotting Northern and Southern blotting Northern and Western blotting
Which of the following methods are used for detection of DNA and RNA, respectively?Southern and Northern blotting Southern and Western blottingNorthern and Southern blott...
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82
GATE BT 2023 | Question: 15
Match the types of RNA in Group I with their corresponding function in Group II. Group I Group II P. mRNA 1. Serves as adaptors between mRNA and amino acids during protein synthesis Q. rRNA 2. Regulates post-transcriptional gene expression R. miRNA 3. Codes for proteins S. tRNA 4. Forms the core of the ... $\text{P-4, Q-3, R-2, S-1}$ $\text{P-2, Q-1, R-4, S-3}$
Match the types of RNA in Group I with their corresponding function in Group II.Group IGroup IIP. mRNA1. Serves as adaptors between mRNA and amino acids during protein sy...
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83
GATE BT 2023 | Question: 16
Which one of the following programs is used for finding distantly related (or remote) protein homologs? BLASTN BLASTX PSI-BLAST TBLASTX
Which one of the following programs is used for finding distantly related (or remote) protein homologs?BLASTNBLASTXPSI-BLASTTBLASTX
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84
GATE BT 2023 | Question: 17
Which one of the following is used for global alignment of two protein sequences? Chou-Fasman method Garnier-Osguthorpe-Robson (GOR) method Needleman-Wunsch algorithm Smith-Waterman algorithm
Which one of the following is used for global alignment of two protein sequences?Chou-Fasman methodGarnier-Osguthorpe-Robson (GOR) methodNeedleman-Wunsch algorithmSmith-W...
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85
GATE BT 2023 | Question: 20
Fabry disease in humans is a X-linked disease. The probability (in percentage) for a phenotypically normal father and a carrier mother to have a son with Fabry disease is _________.
Fabry disease in humans is a X-linked disease. The probability (in percentage) for a phenotypically normal father and a carrier mother to have a son with Fabry disease is...
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86
GATE BT 2023 | Question: 21
The value of $\lim _{x \rightarrow 0}\left[\frac{\cos 2 x-\cos 4 x}{x^{2}}\right]$ is ___________.
The value of $\lim _{x \rightarrow 0}\left[\frac{\cos 2 x-\cos 4 x}{x^{2}}\right]$ is ___________.
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87
GATE BT 2023 | Question: 22
A series $(\mathrm{S})$ is given as $\mathrm{S}=1+3+5+7+9+\ldots \ldots$ The sum of the first $50$ terms of $\mathrm{S}$ is __________.
A series $(\mathrm{S})$ is given as $\mathrm{S}=1+3+5+7+9+\ldots \ldots$The sum of the first $50$ terms of $\mathrm{S}$ is __________.
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88
GATE BT 2023 | Question: 23
Two fair six-sided dice are thrown. The probability of getting $12$ as the product of the numbers on the dice (rounded off to two decimal places) is __________.
Two fair six-sided dice are thrown. The probability of getting $12$ as the product of the numbers on the dice (rounded off to two decimal places) is __________.
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89
GATE BT 2023 | Question: 24
If $7^{3 x}=216$, the value of $7^{-x}$ (rounded off to three decimal places) is _____________.
If $7^{3 x}=216$, the value of $7^{-x}$ (rounded off to three decimal places) is _____________.
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90
GATE BT 2023 | Question: 25
The distance between the two points of intersection of $x^{2}+y=7$ and $x+y=7$ (rounded off to two decimal places) is ___________.
The distance between the two points of intersection of $x^{2}+y=7$ and $x+y=7$ (rounded off to two decimal places) is ___________.
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91
GATE BT 2023 | Question: 26
Match the immune tolerance mechanisms in Group I with their respective outcomes in Group II. Group I Group II P. Anergy 1. Elimination of activated T-cells after antigen clearance Q. Activation-induced cell death 2. Inhibition of auto-reactive T-cells at periphery R. Receptor editing 3. Unresponsiveness to ... $\text{P-3, Q-4, R-2, S-1}$ $\text{P-3, Q-2, R-4, S-1}$
Match the immune tolerance mechanisms in Group I with their respective outcomes in Group II.Group IGroup IIP. Anergy1. Elimination of activated T-cells after antigen clea...
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92
GATE BT 2023 | Question: 27
Match the type of bacteria in Group I with their respective growth properties in Group II. Group I Group II P. Halophile 1. Grows optimally between $20^{\circ} \mathrm{C}$ and $45^{\circ} \mathrm{C}$ Q. Piezophile 2. Grows best at low water activity R. Mesophile 3. Grows at high level of salt S. ... $\text{P-3, Q-1, R-2, S-4}$ $\text{P-4, Q-3, R-1, S-2}$
Match the type of bacteria in Group I with their respective growth properties in Group II.Group IGroup IIP. Halophile1. Grows optimally between $20^{\circ} \mathrm{C}$ an...
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93
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. ...
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94
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...
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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 ...
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96
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...
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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...
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98
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
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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...
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100
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...
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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...
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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...
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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 ...
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104
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...
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105
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 _______________.
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106
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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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 $L \cdot h^{-1}$ )...
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108
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...
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109
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 ____________.
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110
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...
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111
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_...
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112
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 _____________.
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113
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 ___________.
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114
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 ____________.
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115
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...
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116
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...
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117
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...
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118
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...
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119
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...
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120
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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