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361
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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364
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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366
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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371
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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376
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: $$\begin{array}{|l|l|l|l|} \hline \textbf...
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378
GATE2016-51
A protein is to be purified using ion-exchange column chromatography. The relationship between HETP (Height Equivalent to Theoretical Plate) and the linear liquid velocity of mobile phase is given by: $H = \dfrac{A}{u} + Bu + C$ Where $H$ is HETP (m) and ... $66$ cm length will be _________
A protein is to be purified using ion-exchange column chromatography. The relationship between HETP (Height Equivalent to Theoretical Plate) and the linear liquid velocit...
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380
GATE2016-55
Consider the equation $V=\dfrac{aS}{b+S+\dfrac{S^2}{c}}$ Given $a = 4$, $b = 1$ and $c = 9$, the positive value of $S$ at which $V$ is maximum, will be _________
Consider the equation$V=\dfrac{aS}{b+S+\dfrac{S^2}{c}}$Given $a = 4$, $b = 1$ and $c = 9$, the positive value of $S$ at which $V$ is maximum, will be _________
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381
GATE2017-1
An enzyme catalyzes a reaction by decreasing the energy of the substrate. decreasing the activation energy of the reaction. decreasing product stability. increasing the activation barrier of the reaction.
An enzyme catalyzes a reaction bydecreasing the energy of the substrate.decreasing the activation energy of the reaction.decreasing product stability.increasing the activ...
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383
GATE2017-3
Which one of the following organisms is an indicator of fecal contamination? $\textit{Escherichia coli}$ $\textit{Streptococcus lactis}$ $\textit{Bacillus subtilis}$ $\textit{Lactobacillus acidophilus}$
Which one of the following organisms is an indicator of fecal contamination?$\textit{Escherichia coli}$$\textit{Streptococcus lactis}$$\textit{Bacillus subtilis}$$\textit...
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384
GATE2017-5
In a thin layer chromatography experiment using a silica gel plate, a compound showed migration of $12.5$ cm and the solvent front showed migration of $18$ cm. The $R_f$ value for the compound is ______
In a thin layer chromatography experiment using a silica gel plate, a compound showed migration of $12.5$ cm and the solvent front showed migration of $18$ cm. The $R_f$ ...
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385
GATE2017-6
$\underset{x \to 0}{\lim} \dfrac{\sin(x)}{x}$ is ________
$\underset{x \to 0}{\lim} \dfrac{\sin(x)}{x}$ is ________
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386
GATE2017-7
Which one of the following mechanisms is used by human pathogens to evade host immune responses? Somatic hypermutation Antibody production Antigenic variation Complement activation
Which one of the following mechanisms is used by human pathogens to evade host immune responses?Somatic hypermutationAntibody productionAntigenic variationComplement acti...
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387
GATE2017-8
If the nucleotide composition $(\%)$ of a viral genome is $A = 10$, $U = 20$, $C = 40$, and $G = 30$, which one of the following is this genome? Double stranded RNA Single stranded RNA Single stranded DNA Double stranded DNA
If the nucleotide composition $(\%)$ of a viral genome is $A = 10$, $U = 20$, $C = 40$, and $G = 30$, which one of the following is this genome?Double stranded RNASingle ...
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388
GATE2017-9
Which one of the following techniques can be used to determine the structure of a $15$ kDa globular protein at atomic resolution? Raman spectroscopy IR spectroscopy UV spectroscopy NMR spectroscopy
Which one of the following techniques can be used to determine the structure of a $15$ kDa globular protein at atomic resolution?Raman spectroscopyIR spectroscopyUV spect...
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390
GATE2017-11
The plant hormone indole-$3$-acetic acid is derived from histidine tyrosine tryptophan proline
The plant hormone indole-$3$-acetic acid is derived fromhistidinetyrosinetryptophanproline
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391
GATE2017-12
Enzyme-linked immunosorbent assay (ELISA) is used for quantifying antibody levels in blood determining the molecular weight of an antigen purifying proteins from biological fluids determining the molecular weight of an antibody
Enzyme-linked immunosorbent assay (ELISA) is used forquantifying antibody levels in blooddetermining the molecular weight of an antigenpurifying proteins from biological ...
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392
GATE2017-13
Macrophages eliminate pathogenic bacteria upon activation by NK cells basophils CD$4+$ T cells plasma cells
Macrophages eliminate pathogenic bacteria upon activation byNK cellsbasophilsCD$4+$ T cellsplasma cells
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393
GATE2017-14
If a protein contains four cysteine residues, the number of different ways they can simultaneously form two intra-molecular disulphide bonds is __________.
If a protein contains four cysteine residues, the number of different ways they can simultaneously form two intra-molecular disulphide bonds is __________.
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394
GATE2017-15
Secretory proteins synthesized by ER-associated ribosomes traverse through mitochondria peroxisomes the Golgi apparatus the nucleus
Secretory proteins synthesized by ER-associated ribosomes traverse throughmitochondriaperoxisomesthe Golgi apparatusthe nucleus
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395
GATE2017-17
During protein synthesis, tRNAs are NOT involved in charging initiation elongation termination
During protein synthesis, tRNAs are NOT involved incharginginitiationelongationtermination
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396
GATE2017-18
In eukaryotes, cytokinesis is inhibited by cytochalasin D vinblastine nocodazole colchicine
In eukaryotes, cytokinesis is inhibited bycytochalasin Dvinblastinenocodazolecolchicine
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397
GATE2017-19
A proto-oncogene is suspected to have undergone duplication in a certain type of cancer. Of the following techniques, which one would verify the gene duplication? Northern blotting Southern blotting South western blotting Western blotting
A proto-oncogene is suspected to have undergone duplication in a certain type of cancer. Of the following techniques, which one would verify the gene duplication?Northern...
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398
GATE2017-20
A polymerase chain reaction (PCR) was set up with the following reagents: DNA template, Taq polymerase, buffer, dNTPs, and Mg$^{2+}$. Which one of the following is missing in the reaction mixture? Helicase Single-stranded binding proteins Primers Reverse transciptase
A polymerase chain reaction (PCR) was set up with the following reagents: DNA template, Taq polymerase, buffer, dNTPs, and Mg$^{2+}$. Which one of the following is missin...
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