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801
GATE2019: 48
The molecular mass of a protein is $22\:kDa$. The size of the $\text{cDNA}$ (excluding the untranslated regions) that codes for this protein is __________ $kb$ (rounded off to $1$ decimal place).
The molecular mass of a protein is $22\:kDa$. The size of the $\text{cDNA}$ (excluding the untranslated regions) that codes for this protein is __________ $kb$ (rounded o...
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802
GATE2020: 12
Which of the following types of molecules act as biological catalysts? Protein $RNA$ Phospholipid $P$ and $Q$ only $P$ and $R$ only $Q$ and $R$ only $P, Q$ and $R$
Which of the following types of molecules act as biological catalysts?Protein$RNA$Phospholipid$P$ and $Q$ only$P$ and $R$ only $Q$ and $R$ only$P, Q$ and $R$
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803
GATE2019: 9
Which of the following processes can increase genetic diversity of bacteria in nature? Conjugation Transformation Transduction Transfection $P$ only $P$ and $Q$ only $P, Q$ and $R$ only $P, Q, R$ and $S$
Which of the following processes can increase genetic diversity of bacteria in nature?ConjugationTransformationTransductionTransfection$P$ only$P$ and $Q$ only$P, Q$ and ...
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804
GATE2017-31
Match the organisms in $\text{Column I}$ with the characteristics in $\text{Column II}$ ... $\text{P-2, Q-1, R-4, S-3}$ $\text{P-4, Q-1, R-2, S-3}$
Match the organisms in $\text{Column I}$ with the characteristics in $\text{Column II}$:$\begin{array}{|l|l|l|l|} \hline & \textbf{Column I} && \textbf{Column II} \\ \hli...
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805
GATE BT 2024 | Question: 24
If the rate at which E. coli divides is $0.5 \mathrm{~h}^{-1}$, then its doubling time is $\_\_\_\_\_\_\_$ $\text{h}$.
If the rate at which E. coli divides is $0.5 \mathrm{~h}^{-1}$, then its doubling time is $\_\_\_\_\_\_\_$ $\text{h}$.
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806
GATE BT 2024 | Question: 33
The evolution of wings in bats and insects is an example of $\_\_\_\_\_\_\_$ evolution. convergent divergent neutral parallel
The evolution of wings in bats and insects is an example of $\_\_\_\_\_\_\_$ evolution.convergentdivergentneutralparallel
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807
GATE BT 2024 | Question: 41
Which of the following conditions induce(s) the expression of $\beta$-galactosidase gene in the lac operon? Absence of glucose Absence of lactose Presence of glucose Presence of lactose
Which of the following conditions induce(s) the expression of $\beta$-galactosidase gene in the lac operon?Absence of glucoseAbsence of lactosePresence of glucosePresence...
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809
GATE2020: 13
Which one of the following media components is used to maintain $pH$ in mammalian cell culture? $CaCl_{2}$ $MgSO_{4}$ $NaCl$ $NaHCO_{3}$
Which one of the following media components is used to maintain $pH$ in mammalian cell culture?$CaCl_{2}$$MgSO_{4}$$NaCl$$NaHCO_{3}$
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810
GATE2017-24
A bacterium has a genome of size $6$ million base pairs. If the average rate of DNA synthesis is $1000$ base pairs/second, the time taken (in minutes) for replication of the genome will be ________.
A bacterium has a genome of size $6$ million base pairs. If the average rate of DNA synthesis is $1000$ base pairs/second, the time taken (in minutes) for replication of ...
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811
GATE2017-32
Which one of the following amino acids has three ionizable groups? Glycine Leucine Valine Lysine
Which one of the following amino acids has three ionizable groups?GlycineLeucineValineLysine
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812
GATE2014-32
Cholera toxin increases $cAMP$ levels by modifying $G_i$ protein modifying $G_s$ protein binding to adenylate cyclase activating $cAMP$ phosphodiesterase
Cholera toxin increases $cAMP$ levels bymodifying $G_i$ proteinmodifying $G_s$ proteinbinding to adenylate cyclaseactivating $cAMP$ phosphodiesterase
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813
GATE2014-45
Match the items in $\text{Group I}$ with $\text{Group II}$ ... $\text{P-2, Q-4, R-3, S-1}$ $\text{P-3, Q-1, R-4, S-2}$ $\text{P-2, Q-4, R-1, S-3}$
Match the items in $\text{Group I}$ with $\text{Group II}$$\begin{array}{|l|l|l|l|} \hline & \text{Group I} & & \text{Group II} \\ \hline P. & \text{Receptor tyrosine kin...
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814
GATE2012-20
An example of a program for constructing a phylogenetic tree is phylip phrap prodom PHDsec
An example of a program for constructing a phylogenetic tree isphylipphrapprodomPHDsec
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815
GATE BT 2024 | Question: 52
If $\vec{v}=\left(\begin{array}{l}2 \\ 2 \\ 2\end{array}\right)$ is an eigenvector of the matrix $\left(\begin{array}{lll}1 & 2 & 3 \\ 1 & 2 & 3 \\ 1 & 2 & 3\end{array}\right)$ corresponding to the non-zero eigenvalue, $\lambda$, then the value of $\lambda$ is $\_\_\_\_\_\_\_\_$.
If $\vec{v}=\left(\begin{array}{l}2 \\ 2 \\ 2\end{array}\right)$ is an eigenvector of the matrix $\left(\begin{array}{lll}1 & 2 & 3 \\ 1 & 2 & 3 \\ 1 & 2 & 3\end{array}\r...
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816
GATE2019: 32
$Group\; I$ lists spectroscopic methods and $Group\; II$ lists biomolecular applications of these methods. Match the methods in $Group\; I$ with the applications in $Group\; II$ ... $P-4, Q-3, R-1$ $P-2, Q-1, R-3$ $P-1, Q-2, R-4$ $P-3, Q-2, R-4$
$Group\; I$ lists spectroscopic methods and $Group\; II$ lists biomolecular applications of these methods. Match the methods in $Group\; I$ with the applications in $Grou...
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817
GATE2019: 10
Which one of the following is $NOT$ a part of the human nonspecific defense system? Interferon Mucous Saliva Antibody
Which one of the following is $NOT$ a part of the human nonspecific defense system?InterferonMucousSalivaAntibody
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818
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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819
GATE2017-34
The concentration (in micromolar) of NADH in a solution with $A_{340}=0.50$ is _________ Given data: Path length $=1$ cm; Molar extinction coefficient of NADH $\varepsilon_{340}= 6220 M^{-1}cm^{-1}$
The concentration (in micromolar) of NADH in a solution with $A_{340}=0.50$ is _________Given data: Path length $=1$ cm; Molar extinction coefficient of NADH $\varepsilon...
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820
GATE2017-55
Which of the following conditions promote the development of human autoimmune disorders? Inability to eliminate self-reactive lymphocytes Generation of auto-antibodies Ability to eliminate self-reactive T-cells Induction of regulatory T-cells in the thymus P,R Q,S P,Q R,S
Which of the following conditions promote the development of human autoimmune disorders?Inability to eliminate self-reactive lymphocytesGeneration of auto-antibodiesAbili...
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822
GATE BT 2024 | Question: 45
Aspergillus niger is grown in a $10,000$ ... concentration is $\_\_\_\_\_\_\_$ $\mathrm{kg} \mathrm{m}^{-3}$ (Answer in integer).
Aspergillus niger is grown in a $10,000$ L stirred batch bioreactor under aerated conditions to produce citric acid. At steady state oxygen transfer conditions, the speci...
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823
GATE BT 2024 | Question: 55
The absolute relative error in evaluating the integral $\int_0^1 x^2 d x$ by the trapezoidal rule with the step size $0.25$ is $\%$ $\_\_\_\_\_\_\_\_$ (rounded off to $2$ decimal places).
The absolute relative error in evaluating the integral $\int_0^1 x^2 d x$ by the trapezoidal rule with the step size $0.25$ is $\%$ $\_\_\_\_\_\_\_\_$ (rounded off to $2$...
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825
GATE2017-45
A pedigree of an inheritable disease is shown below. This inheritable disease is $X$-linked dominant $X$-linked recessive or Y-linked only $Y$-linked only $X$-linked recessive
A pedigree of an inheritable disease is shown below.This inheritable disease is$X$-linked dominant$X$-linked recessive or Y-linkedonly $Y$-linkedonly $X$-linked recessive...
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826
GATE2015-30
In DNA sequencing reactions using the chain termination method, the ratio of ddNTPs to dNTPs should be $0$ $< 1$ $1$ $>1$
In DNA sequencing reactions using the chain termination method, the ratio of ddNTPs to dNTPs should be$0$$< 1$$1$$>1$
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827
GATE2015-48
$\textit{Saccharomyces cerevisiae}$ produces ethanol by fermentation. The theoretical yield of ethanol from $2.5$ g of glucose is _________ g.
$\textit{Saccharomyces cerevisiae}$ produces ethanol by fermentation. The theoretical yield of ethanol from $2.5$ g of glucose is _________ g.
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828
GATE BT 2024 | Question: 14
An element that is present in a nucleotide but not in a nucleoside is $\_\_\_\_\_\_\_$ carbon nitrogen oxygen phosphorous
An element that is present in a nucleotide but not in a nucleoside is $\_\_\_\_\_\_\_$carbonnitrogenoxygenphosphorous
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829
GATE BT 2024 | Question: 19
The value of the series $1+\sin x+\cos ^{2} x+\sin ^{3} x+\cdots$ at $x=\frac{\pi}{4}$ is $\_\_\_\_\_\_\_$. $\frac{1}{\sqrt{2}+1}$ $\frac{\sqrt{2}}{\sqrt{2}+1}$ $\frac{1}{\sqrt{2}-1}$ $\frac{\sqrt{2}}{\sqrt{2}-1}$
The value of the series $1+\sin x+\cos ^{2} x+\sin ^{3} x+\cdots$ at $x=\frac{\pi}{4}$ is $\_\_\_\_\_\_\_$.$\frac{1}{\sqrt{2}+1}$$\frac{\sqrt{2}}{\sqrt{2}+1}$$\frac{1}{\s...
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833
GATE BT 2024 | Question: 37
Which of the following is/are considered as biotic elicitor(s) in plant cell culture? Cellulase Chitin Chitosan Mercuric chloride
Which of the following is/are considered as biotic elicitor(s) in plant cell culture?CellulaseChitinChitosanMercuric chloride
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840
GATE BT 2024 | Question: 38
Under which of the following conditions, a mammalian somatic cell fails to undergo mitosis during cell cycle? Initiation of cell plate formation Incomplete DNA replication Chiasmata formation Irreparable DNA damage
Under which of the following conditions, a mammalian somatic cell fails to undergo mitosis during cell cycle?Initiation of cell plate formationIncomplete DNA replicationC...
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