Recent questions without an upvoted answer

​​​​​The diversity in $T$-cell receptors is generated bygene rearrangementssomatic hypermutation of rearranged $V$ regiongene conversionclass switching

​​​​Which one of the following is true for piRNAs?piRNAs silence transposable elements in germ cellspiRNA is the abbreviation of $P$-element interacting RNApiRNAs modify ...

​​​​Which one of the following coenzymes is utilised by alanine racemase for the conversion of $L$-Alanine to $D$-Alanine?Pyridoxal phosphateThiamine pyrophosphateTetrahy...

​​​​​Which one of the following hosts is used in mammalian cell culture for the production of glycosylated recombinant therapeutic proteins?Pichia pastorisSf$9$ cellsEsch...

​​​​Which of the following features is/are used to distinguish Archaea from Bacteria?Gram-stainingPeptidoglycan in the cell wallPresence of N -acetylglucosamine$16 S$ rRN...

​​​​Which of the following enzymes is/are involved in the biogenesis of miRNA?DroshaCas$9$XRCC$4$Dicer

​​​​​​Which of the following separation processes is/are based on molecular size?Size-exclusion chromatographyIon exchange chromatographyMembrane ultrafiltrationUltracent...

​​Which of the following show(s) optical activity at $100 \: \mathrm{mM}$ concentration in water?Solution of NaClSolution of D-GlucoseSolution of GlycineSolution of L-Pro...

​​​Which of the following compounds have the same degree of reduction per carbon-mole?GlucoseLactic acidAcetic acidFormic acid

​​​​A recombinant protein is secreted extracellularly in soluble form by an $E. coli$ culture. Which of the following downstream processes is/are involved in the purifica...

For a mechanically reversible isobaric process taking place in a closed system involving $5$ moles of an ideal gas, the temperature increases from an initial value of $30...

The contour length of a B-DNA molecule that encodes a bacterial protein of $33 \: \text{kDa}$ is $\_\_\_\_$ $\mathrm{ nm}$.Consider the average molecular weight of an ami...

Within the Michaelis-Menten framework, the ratio of $v_{0} / V_{\max }$ when $[\mathrm{S}]=20 \times K_{\mathrm{m}}$ is $\_\_\_\_\_$(Round off to two decimal places)

Consider a nonlinear algebraic equation, $e^{x}-2=0$. Using the Newton-Raphson method, with the initial guess of $x_{0}=1$, the approximated value of the root of the equa...

The value of $k$, for which the linear equations $2 x+3 y=6$ and $4 x+6 y=3 k$ have at least one solution, is $\_\_\_\_\_$ (Answer in integer)

Two fair six-sided dice, with sides numbered $1$ to $6$ , are thrown once. The probability of getting $7$ as the sum of the numbers on the top side of the dice is $\_\_\_...

Correctly match the Inhibitor with its respective Function in mitochondrial respiration.\[\begin{array}{|l|}\hline\begin{array}{l|l}\textbf{Inhibitor} & \textbf{Function}...

​​​​​An octapeptide composed of these $L$-amino acids - Lys, Thr, Ser, Met, Arg, Trp, Tyr, Glu - was subjected to analyses with the following outcomes:$\text{P}$. The N-t...

​​​Correctly match the type of Hypersensitivity reaction with its respective Example.$$\begin{array}{|l|l|}\hline \textbf{Hypersensitivity reaction} & \textbf{Example} \\...

Correctly match the Enzyme with its respective Function.\begin{array}{|l|l|}\hline \textbf{ Enzyme } & \textbf{ Function } \\\hline \text{P. Gyrase} & 1. \text{Removes a ...

​​​​Correctly match the Coenzyme with its respective involvement in a specific Reaction type.\begin{array}{|l|l|}\hline \textbf{Coenzyme } & \textbf{Reaction type} \\\hli...

​​​​A thermometer measuring body temperature follows a first-order response with a time constant of $40$ seconds. The instrument will reach $95 \%$ of its steady-state ou...

​​​​​The output $y(t)$ of a first-order process is governed by the following differential equation\[\tau_{p} \frac{d y}{d t}+y=K_{p} f(t)\]where $\tau_{p}$ is a non-zero ...

​​Let $m$ and $n$ be fixed real numbers. If the function $y(t)=C_{1} e^{t}+C_{2} e^{-t}$ is a solution of$$ \frac{d^{2} y}{d t^{2}}+m \frac{d y}{d t}+n y=0$$for any const...

​​​​If the function$$ f(x)=\left\{\begin{array}{ll}\sin 2 x, & \text { for } x>0 \\a+b x, & \text { for } x \leq 0\end{array}\right.$$where $a$ and $b$ are constants, is ...

​​​​Correctly match the following Bioinformatic tool/Database with its respective Utility.\begin{array}{|l|l|}\hline \textbf{Bioinformatic tool/Database} & \textbf{Utilit...

​​​​Correctly match the herbicide with its mode of development of resistance in plants.\begin{array}{|l|l|}\hline \textbf{Herbicide } & \textbf{Mode of development of res...

​​​​​Which of the following statements is/are true regarding the effect of the concentration of metabolic intermediates on glycolysis in erythrocytes?Increased AMP levels...

​​​​Which of the following statements about initiation of DNA replication in eukaryotes is/are true?DNA replication is initiated at the origin of replication licensed by ...

​​​​Which of the following proteins is/are involved in intraflagellar transport?MicrotubulesMyosinActinKinesin

​​​​Which of the following statements is/are true about telomerase?Telomerase has $5^{\prime}-3^{\prime}$ DNA-dependent DNA polymerisation activityTelomerase has $5^{\pri...

​​​The blood group of the mother is $\mathrm{A}^{+}$and that of the father is $\mathrm{AB}^{+}$. Which of the following statements is/are correct?Probability of the offsp...