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Recent questions tagged gate2016
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41
GATE2016-31
Match the secondary metabolites (Column-I) with the corresponding plant species (Column-II). ... $\text{P-2, Q-3, R-4, S-1}$ $\text{P-4: Q-1, R-2, S-3}$
Match the secondary metabolites (Column-I) with the corresponding plant species (Column-II).$\begin{array}{|l|l|l|l|} \hline & \textbf{Column-I} & &\textbf{Column-II} \\ ...
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42
GATE2016-32
A variety of genetic elements are used in the transgenic plant research. Match the genetic elements (Column-I) with their corresponding source (Column-ll). ... $\text{P-3, Q-4, R-1, S-2}$ $\text{P-4, Q-1, R-2, S-3}$
A variety of genetic elements are used in the transgenic plant research. Match the genetic elements (Column-I) with their corresponding source (Column-ll).$\begin{array}{...
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GATE2016-33
Match the type of chromosomal inheritance (Column-I) with the corresponding genetic disease or trait (Column-II). ... $\text{P-3, Q-1, R-4, S-2}$ $\text{P-4, Q-2, R-3, S-1}$
Match the type of chromosomal inheritance (Column-I) with the corresponding genetic disease or trait (Column-II).$\begin{array}{|l|l|l|l|} \hline & \textbf{Column-I} & & ...
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44
GATE2016-34
A crossing was performed between the genotypes $\textit{DdEeFfgg}$ and $\textit{ddEeFfGg}$. Assuming that the allelic pairs of all genes assort independently, the proportion of progeny having the genotype $\textit{ddeeffgg}$ is expected to be _______ $\%$
A crossing was performed between the genotypes $\textit{DdEeFfgg}$ and $\textit{ddEeFfGg}$. Assuming that the allelic pairs of all genes assort independently, the proport...
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45
GATE2016-35
The equilibrium potential of a biological membrane for $Na^+$ is $55$ mV at $37^\circ$ C. Concentration of $Na^+$ inside the cell is $20$ mM. Assuming the membrane is permeable to $Na^+$ only, the $Na^+$ concentration outside the membrane will be __________mM. (Faraday constant: $23062 \text{ cal} \cdot V^{-1}\cdot \text{mol}^{-1}$, Gas constant: $1.98 \text{ cal.mol}^{-1}.K^{-1}$)
The equilibrium potential of a biological membrane for $Na^+$ is $55$ mV at $37^\circ$ C. Concentration of $Na^+$ inside the cell is $20$ mM. Assuming the membrane is per...
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46
GATE2016-36
A $1.2$ kb DNA fragment was cloned into $\textit{Bam}$HI and $\textit{Eco}$RI sites located on a $2.8$ kb cloning vector. The $\textit{Bam}$HI and $\textit{Eco}$RI sites are adjacent to each other on the vector backbone. The vector contains an $\textit{XhoI}$ site located $300$ ... to: $2800$, $700$ and $500$ $2800$, $700$ and $800$ $2500$, $700$ and $800$ $2500$, $1200$ and $300$
A $1.2$ kb DNA fragment was cloned into $\textit{Bam}$HI and $\textit{Eco}$RI sites located on a $2.8$ kb cloning vector. The $\textit{Bam}$HI and $\textit{Eco}$RI sites ...
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47
GATE2016-37
Find the INCORRECT combination Surface immunoglobulins – B cell antigen receptor Affinity maturation - isotype switching Fc region of antibodies – binding to complement proteins Spleen, the secondary lymphoid organ – no connection with the lymphatic system
Find the INCORRECT combinationSurface immunoglobulins – B cell antigen receptorAffinity maturation - isotype switchingFc region of antibodies – binding to complement ...
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GATE2016-38
Which of the following statement(s) is/are CORRECT for antigen activated effector T cells? $CD4^+$ cells make contact with macrophages and stimulate their microbicidal activity. $CD4^+$ cells make contact with B cells and stimulate them to differentiate into plasma cells. $CD8^+$ cells make contact with B ... and kill them $Q$ only $Q$ and $S$ only $P, Q$ and $S$ only $P, Q, R$ and $S$
Which of the following statement(s) is/are CORRECT for antigen activated effector T cells?$CD4^+$ cells make contact with macrophages and stimulate their microbicidal act...
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49
GATE2016-39
Which one of the following statements regarding G proteins is INCORRECT? GDP is bound to G protein in the resting stage GTP bound $\alpha$ subunit cannot reassemble with $\beta \gamma$ dimer All G proteins are trimeric Activation of G protein may result in activation or inhibition of the target enzymes
Which one of the following statements regarding G proteins is INCORRECT?GDP is bound to G protein in the resting stageGTP bound $\alpha$ subunit cannot reassemble with $\...
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GATE2016-40
In animal cell culture, a CO$_2$ enriched atmosphere in the incubator chamber is used to maintain the culture pH between $6.9$ and $7.4$. Which one of the following statements is CORRECT? Higher the bicarbonate concentration in the medium, higher ... the medium, lower should be the requirement of gaseous CO$_2$ CO$_2$ requirement is independent of bicarbonate concentration in the medium
In animal cell culture, a CO$_2$ enriched atmosphere in the incubator chamber is used to maintain the culture pH between $6.9$ and $7.4$. Which one of the following state...
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GATE2016-41
Choose the CORRECT combination of True (T) and False (F) statements about microcarriers used in animal cell culture. Higher cell densities can be achieved using microcarriers Microcarriers increase the surface area for cell growth. Microcarriers are used for both anchorage - and nonanchorage-dependent cells Absence of ... $\text{P-F, Q-T, R-F and S-T}$
Choose the CORRECT combination of True (T) and False (F) statements about microcarriers used in animal cell culture.Higher cell densities can be achieved using microcarri...
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GATE2016-42
In an assay of the type II dehydroquinase of molecular mass $18$ kDa, it is found that the $V_{\text{max}}$ of the enzyme is $0.0134 \: \mu \text{ mol} \cdot \text{min}^{-1}$ when $1.8 \: \mu g$ enzyme is added to the assay mixture. If the $K_m$ for the substrate is $25 \: \mu M$, the $k_{\text{cat}}/K_m$ ratio will be _______ $\times 10^4 \: M^{-1} \cdot s^{-1}$
In an assay of the type II dehydroquinase of molecular mass $18$ kDa, it is found that the $V_{\text{max}}$ of the enzyme is $0.0134 \: \mu \text{ mol} \cdot \text{min}^{...
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GATE2016-43
The molar extinction coeffcients of Trp and Tyr at $280$ nm are $5690$ and $1280 \: M^{-1} \cdot cm^{-1}$, respectively. The polypeptide chain of yeast alcohol dehydrogenase ($37$ kDa) contains $5$ Trp and $14$ Tyr residues. ... pathlength will be _________ (Assume that the molar extinction coefficient values for Trp and Tyr apply to these amino acids inthe yeast alcohol dehydrogenase).
The molar extinction coeffcients of Trp and Tyr at $280$ nm are $5690$ and $1280 \: M^{-1} \cdot cm^{-1}$, respectively. The polypeptide chain of yeast alcohol dehydrogen...
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GATE2016-44
The activity of lactate dehydrogenase can be measured by monitoring the following reaction: $\text{Pyruvate} + \text{NADH} \rightarrow \text{Lactate} + \text{NAD}^+$ The molar extinction coefficient of NADH at $340$ nm is $6220 \: M^{-1} \cdot cm^{-1}. NAD^+$ does not ... $\mu \text{mol.min}^{-1}.mg^{-1}$
The activity of lactate dehydrogenase can be measured by monitoring the following reaction: $$\text{Pyruvate} + \text{NADH} \rightarrow \text{Lactate} + \text{NAD}^+$$ Th...
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GATE2016-45
Analysis of a hexapeptide using enzymatic cleavage reveals the following result: Amino acid composition of the peptide is: $2R, A, V, S, Y$ Trypsin digestion yields two fragments and the compositions are: $(R A,V)$ and $(R, S, Y)$ Chymotrypsin digestion yields ... peptide. The correct amino acid sequence of the peptide is $\text{RSYRVA}$ $\text{AVRYSR}$ $\text{SRYVAR}$ $\text{SVRRYA}$
Analysis of a hexapeptide using enzymatic cleavage reveals the following result:Amino acid composition of the peptide is: $2R, A, V, S, Y$Trypsin digestion yields two fra...
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GATE2016-46
The empirical formula for biomass of an unknown organism is $CH_{1.8}O_{0.5}N_{0.2}$. To grow this organism, ethanol $(C_2H_5OH)$ and ammonia are used as carbon and nitrogen sources, respectively. Assume no product formation other than biomass. To produce $1$ mole of biomass from $1$ mole of ethanol, the number of moles of oxygen required will be __________
The empirical formula for biomass of an unknown organism is $CH_{1.8}O_{0.5}N_{0.2}$. To grow this organism, ethanol $(C_2H_5OH)$ and ammonia are used as carbon and nitro...
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numerical-answers
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GATE2016-47
$\textit{Saccharomyces cerevisiae}$ is cultured in a chemostat (continuous fermentation) at a dilution rate of $0.5 \: h^{-1}$. The feed substrate concentration is $10 \: g \cdot L^{-1}$. The biomass concentration in the chemostat at steady state will be _________ $g \cdot L^{-1}$. ... $K_s = 0.3 \: g \cdot L^{-1}$ and $s$ is substrate concentration $(g \cdot L^{-1})$.
$\textit{Saccharomyces cerevisiae}$ is cultured in a chemostat (continuous fermentation) at a dilution rate of $0.5 \: h^{-1}$. The feed substrate concentration is $10 \:...
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numerical-answers
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GATE2016-48
Decimal reduction time of bacterial spores is $23$ min at $121 ^\circ C$ and the death kinetics follow first order. One liter medium containing $10^5$ spores per $mL$ was sterilized for $10$ min at $121^\circ C$ in a batch sterilizer. ... in the medium after sterilization (assuming destruction of spores in heating and cooling period is negligible) will be _________ $\times 10^7$.
Decimal reduction time of bacterial spores is $23$ min at $121 ^\circ C$ and the death kinetics follow first order. One liter medium containing $10^5$ spores per $mL$ was...
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GATE2016-49
A bioreactor is scaled up based on equal impeller tip speed. Consider the following parameters for small and large bioreactors: ... regime, what will be $P_2/ P_1$ $(D_1/D_2)^2$ $(D_2/D_1)^2$ $(D_1/D_2)^5$ $(D_2/D_1)^5$
A bioreactor is scaled up based on equal impeller tip speed. Consider the following parameters for small and large bioreactors: $$\begin{array}{|l|l|l|l|} \hline \textbf...
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GATE2016-50
An enzyme converts substrate $A$ to product $B$. At a given liquid feed stream of o rate $25$ L.min$^{-1}$ and feed substrate concentration of $2$ mol.L$^{-1}$, the volume of continuous stirred tank reactor needed for $95 \%$ ... $^{-1}$. Assumptions: Enzyme concentration is contant and does not undergo any deactivation during the reaction
An enzyme converts substrate $A$ to product $B$. At a given liquid feed stream of o rate $25$ L.min$^{-1}$ and feed substrate concentration of $2$ mol.L$^{-1}$, the volum...
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GATE2016-51
A protein is to be purified using ion-exchange column chromatography. The relationship between HETP (Height Equivalent to Theoretical Plate) and the linear liquid velocity of mobile phase is given by: $H = \dfrac{A}{u} + Bu + C$ Where $H$ is HETP (m) and ... $66$ cm length will be _________
A protein is to be purified using ion-exchange column chromatography. The relationship between HETP (Height Equivalent to Theoretical Plate) and the linear liquid velocit...
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GATE2016-52
An enzyme is immobilized on the surface of a non-porous spherical particle of $2$ mm diameter. The immobilized enzyme is suspended in a solution having bulk substrate concentration of $10$ mM. The enzyme follows first order kinetics with rate constant $10 s^{-1}$ and ... $(mmol.L^{-1}.s^{-1} )$. The substrate concentration at the surface of the immobilized particle will be ________ mM.
An enzyme is immobilized on the surface of a non-porous spherical particle of $2$ mm diameter. The immobilized enzyme is suspended in a solution having bulk substrate con...
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GATE2016-53
$\dfrac{d^2y}{dx^2}-y=0$. The conditions for this second order homogeneous differential equation are $y(0)=1$ and $\dfrac{dy}{dx}=3$ at $x=0$. The value of $y$ when $x = 2$ is __________
$\dfrac{d^2y}{dx^2}-y=0$. The conditions for this second order homogeneous differential equation are $y(0)=1$ and $\dfrac{dy}{dx}=3$ at $x=0$. The value of $y$ when $x = ...
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Differential Equations
gate2016
numerical-answers
differential-equations
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GATE2016-54
The value of determinant $A$ given below is ________. $A = \begin{pmatrix} 5 & 16 & 81 \\ 0 & 2 & 2 \\ 0 & 0 & 16 \end{pmatrix}$
The value of determinant $A$ given below is ________.$A = \begin{pmatrix} 5 & 16 & 81 \\ 0 & 2 & 2 \\ 0 & 0 & 16 \end{pmatrix}$
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Linear Algebra
gate2016
numerical-answers
linear-algebra
matrices
determinant
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GATE2016-55
Consider the equation $V=\dfrac{aS}{b+S+\dfrac{S^2}{c}}$ Given $a = 4$, $b = 1$ and $c = 9$, the positive value of $S$ at which $V$ is maximum, will be _________
Consider the equation$V=\dfrac{aS}{b+S+\dfrac{S^2}{c}}$Given $a = 4$, $b = 1$ and $c = 9$, the positive value of $S$ at which $V$ is maximum, will be _________
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