Recent questions tagged gatebt-2023

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...

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...

Which of the following is(are) plant protoplast fusogenic agent(s)?Sodium nitratePolyvinyl alcoholPolyethylene glycolBromoxynil

Direct DNA transfer method(s) used for plant genetic engineering is(are)microparticle bombardmentelectroporationpolyethylene glycol treatmentAgrobacterium-mediated transf...

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...

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...

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 ...

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...

If there are three unrooted trees for four protein sequences, the number of rooted trees for the same number of sequences is _______________.

The number of different possible ways of forming five intramolecular disulfide bonds with ten cysteine residues of a protein 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 $L \cdot h^{-1}$ )...

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...

DNA sample collected from an unidentified bacterial species $(Y)$ contains $13 \%$ of adenine. The $G+C$ content (in percentage) of $Y$ 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...

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_...

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 $f(x)=\frac{\sin x+\cos x}{\sin x-\cos x}$, the value of $f^{\prime}(x)$ at $x=0$ is ___________.

If $f(2)=5$ and $(f(x))(f(x+1))=3$ for all real values of $x$, the value of $f(10)$ 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...

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...

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...

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...

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...