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GATE BT 2026 | Question: 31
For the given matrix, which of the statements given below is/are true?\[\left[\begin{array}{ccc}3 & 1 & 5 \\2 & -1 & 0 \\5 & 2 & 9\end{array}\right]\]The matrix is full r...
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GATE BT 2026 | Question: 32
Messenger $\text{RNAs (mRNAs)}$ translate to generate polypeptides and the translation terminates at the $\text{UGA, UAG}$ or $\text{UAA}$ stop codons. The $\text{AGA}$ c...
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GATE BT 2026 | Question: 33
The RNA sequence below depicts the part of a $330$ nucleotides long $\text{mRNA}$ and it encodes the $\text{C}$-terminal portion of a protein.$5^{\prime}-\ldots \ldots$ $...
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GATE BT 2026 | Question: 34
A microbial culture is being grown in a bioreactor with continuous aeration. The dissolved oxygen probe provided with the system shows a reading of zero. In this context,...
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GATE BT 2026 | Question: 35
For a Newtonian fluid, a plot of shear stress (on $\text{Y}$ axis) against shear rate (on $\text{X}$ axis) will result in a straight line $\_\_\_\_$.parallel to the $\tex...
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GATE BT 2026 | Question: 36
In an aerobic fermentation with air sparging, which of the following options can be used to increase the volumetric mass transfer coefficient for oxygen transfer?Using pu...
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GATE BT 2026 | Question: 37
For a liquid flowing in a circular cross section pipe, the transition from laminar to turbulent flow will NOT depend on which of the following factor(s)?The diameter of t...
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GATE BT 2026 | Question: 38
Which of the following is/are posttranslational modification(s) involved in epigenetic control of gene expression?Arginine methylationLysine acetylationCytosine methylati...
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GATE BT 2026 | Question: 39
For an ideal plug flow reactor, which of the following statements is/are true?It can be approximated by a large number of ideal continuous stirred tank reactors connected...
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GATE BT 2026 | Question: 40
An enzyme-catalyzed reaction is found to have $\Delta \mathrm{G}=-100 \mathrm{~kJ} \mathrm{~mol}^{-1}$. Which of the following statements about this reaction is/are true?...
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GATE BT 2026 | Question: 41
Consider the equation $\dfrac{d y}{d x}=\dfrac{1}{x}$The value of the integral $\int_{1}^{2} d y$ using trapezoidal method and interval $h=0.25$ is $\_\_\_\_$. (rounded o...
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GATE BT 2026 | Question: 42
If the straight lines given by the following two equations are parallel to each other, the value of $\boldsymbol{a}$ is $\_\_\_\_$. (answer in integer)\[4 x+7 y=6 ; \quad...
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GATE BT 2026 | Question: 43
A straight line $y=x-1$ intersects a circle with center at $x=1, y=1$ and radius of magnitude $1$ at two points. The length of the chord formed by this intersection is $\...
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GATE BT 2026 | Question: 44
A heat exchanger during operation in a bioprocess has a steady temperature of $90^{\circ} \mathrm{C}$. After completion of its operation, it was shut down and it was obse...
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GATE BT 2026 | Question: 45
A microbial culture (following Monod model for growth) has a maximum specific growth rate of $0.1 \mathrm{~h}^{-1}$, Monod constant of $1 \mathrm{mg} \mathrm{L}^{-1}$ and...
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GATE BT 2026 | Question: 46
A $\text{CSTR}$ with a volume of $100 \mathrm{~m}^{3}$ is operated in cell recycle mode. At a volumetric flow rate of $10 \mathrm{~m}^{3}$ day ${ }^{-1}$ and effluent bio...
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GATE BT 2026 | Question: 47
The electron equivalent per liter (e-eq $\mathrm{L}^{-1}$ ) of acetate ion solution of concentration $10 \mathrm{~g} \mathrm{~L}^{-1}$ is $\_\_\_\_$ $\mathrm{e}^{-} \math...
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GATE BT 2026 | Question: 48
From the following plot of $\dfrac{d y}{d x}$ versus $x$ and if $y(2)=5$, the value of $y(3)$ is $\_\_\_\_$. (rounded off to one decimal place) 
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GATE BT 2026 | Question: 49
A batch sterilizer is being operated at $121^{\circ} \mathrm{C}$ for sterilizing a medium containing microbial cells. Assume that the thermal deactivation of cells is a f...
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GATE BT 2026 | Question: 50
A substrate is consumed in a zero order reaction such that its concentration falls from $42 \mathrm{~g} \mathrm{~L}^{-1}$ to $14 \mathrm{~g} \mathrm{~L}^{-1}$ in $4$ hour...
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GATE BT 2026 | Question: 51
A microbe that follows Monod growth kinetics on a limiting substrate (maximum specific growth rate of $0.5 \mathrm{~h}^{-1}$ and Monod constant of $0.1 ~\mathrm{mg} \math...
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GATE BT 2026 | Question: 52
It is desired to cultivate $150$ mg (dry weight) microbial cells with an empirical formula of $\mathrm{C}_{5} \mathrm{H}_{7} \mathrm{O}_{2} \mathrm{~N}$. If the phosphoru...
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GATE BT 2026 | Question: 53
In the process of generating a clonal mammalian cell line, a single cell was seeded in a well of a cell culture plate. After the first $48$ hours, one of the progeny cell...
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GATE BT 2026 | Question: 54
A disease-associated allele shows $\text{X}$-linked recessive inheritance. If the mother is a carrier of the disease, the father is genetically normal and the child born ...
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GATE BT 2026 | Question: 55
A packed bed bioreactor with length $1 \text{~m}$ and inside diameter $10 \text{~cm}$ has liquid flowing at an interstitial velocity of $1 \mathrm{~cm} \mathrm{~s}^{-1}$....
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GATE BT 2018 | GA | Question: 10
In a detailed study of annual crow births in India, it was found that there was relatively no growth during the period $2002$ to $2004$ and a sudden spike from $2004$ to ...
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GATE BT 2018 | GA | Question: 9
If $x^2 + x – 1 = 0$ what is the value of $x^4 + \dfrac{1}{x^4}$?$1$$5$$7$$9$
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GATE BT 2018 | GA | Question: 8
To pass a test, a candidate needs to answer at least $2$ out of $3$ questions correctly. A total of $6,30,000$ candidates appeared for the test. Question A was correctly ...
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GATE BT 2018 | GA | Question: 7
A set of $4$ parallel lines intersect with another set of $5$ parallel lines. How many parallelograms are formed?$20$$48$$60$$72$
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GATE BT 2018 | GA | Question: 6
An automobile travels from city A to city B and returns to city A by the same route. The speed of the vehicle during the onward and return journeys were constant at $60$ ...
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GATE BT 2018 | GA | Question: 5
Arrange the following three-dimensional objects in the descending order of their volumes:A cuboid with dimensions $10$ cm, $8$ cm and $6$ cmA cube of side $8$ cmA cylinde...
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GATE BT 2018 | GA | Question: 4
The area of an equilateral triangle is $\sqrt{3}$. What is the perimeter of the triangle?$2$$4$$6$$8$
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GATE BT 2018 | GA | Question: 3
For $0 \leq x \leq 2\pi$, $\sin x$ and $\cos x$ are both decreasing functions in the interval __________.$\bigg( 0, \dfrac{\pi}{2} \bigg) \\$$\bigg( \dfrac{\pi}{2}, \pi ...
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GATE BT 2018 | GA | Question: 2
In spite of being warned repeatedly, he failed to correct his _________ behaviour."The word that best fills the blank in the above sentence isrationalreasonableerrantgood
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GATE BT 2018 | GA | Question: 1
"When she fell down the __________, she received many __________ but little help."The words that best fill the blanks in the above sentence arestairs, staresstairs, stair...
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GATE2018-55
A rod shaped bacterium has a length of $2 \: \mu m$, diameter of $1 \mu m$ and density the same as that of water. If proteins constitute $15 \%$ of the cell mass and the ...
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GATE2018-54
The product of complete digestion of the plasmid shown below with EcoRI and HaeIII was purified and used as a template in a reaction containing Klenow fragment of DNA pol...
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GATE2018-53
Consider a simple uni-substrate enzyme that follows Michaelis-Menten kinetics. When the enzyme catalyzed reaction was carried out in the presence of $10$ nM concentration...
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GATE2018-52
First order deactivation rate constants for soluble and immobilized amyloglucosidase enzyme are $0.03 \text{ min}^{-1}$ and $0.005 \text{ min}^{-1}$, respectively. The ra...
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GATE2018-51
Consider the following alignment of two DNA sequences:$$\mathbf{AGTAAC} \\ \mathbf{AA}\text{- -}\mathbf{AC}$$Assuming an affine gap scoring scheme of an identity matrix f...
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