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322
GATE2020: GA: 5
The difference between the sum of the first $2n$ natural numbers and the sum of the first $n$ odd natural numbers is ______ $n^2-n$ $n^2+n$ $2n^2-n$ $2n^2+n$
The difference between the sum of the first $2n$ natural numbers and the sum of the first $n$ odd natural numbers is ______$n^2-n$$n^2+n$$2n^2-n$$2n^2+n$
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326
GATE2020: GA: 9
For a matrix $M=[m_{ij}]; \: i,j=1,2,3,4$, the diagonal elements are all zero and $m_{ij}=-m_{ji}$. The minimum number of elements required to fully specify the matrix is ________ $0$ $6$ $12$ $16$
For a matrix $M=[m_{ij}]; \: i,j=1,2,3,4$, the diagonal elements are all zero and $m_{ij}=-m_{ji}$. The minimum number of elements required to fully specify the matrix is...
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328
GATE2020: 1
Protein $P$ becomes functional upon phosphorylation of a serine residue. Replacing this serine with _____________ will result in a phosphomimic mutant of $P$. alanine aspartic acid phenylalanine lysine
Protein $P$ becomes functional upon phosphorylation of a serine residue. Replacing this serine with _____________ will result in a phosphomimic mutant of $P$.alanineaspar...
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329
GATE2020: 2
Ras protein is a trimeric GTPase involved in relaying signal from cell surface to nucleus monomeric GTPase involved in relaying signal from cell surface to nucleus trimeric GTPase involved in regulation of cytoskeleton monomeric GTPase involved in regulation of cytoskeleton
Ras protein is atrimeric GTPase involved in relaying signal from cell surface to nucleusmonomeric GTPase involved in relaying signal from cell surface to nucleustrimeric ...
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331
GATE2020: 4
Which class of antibody is first made by developing $B$ cells inside bone marrow? $IgG$ $IgE$ $IgA$ $IgM$
Which class of antibody is first made by developing $B$ cells inside bone marrow?$IgG$$IgE$$IgA$$IgM$
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333
GATE2020: 6
Vincristine and vinblastine, two commercially important secondary metabolites from $Catharanthus\; roseus$, are examples of alkaloids flavonoids terpenoids steroids
Vincristine and vinblastine, two commercially important secondary metabolites from $Catharanthus\; roseus$, are examples ofalkaloidsflavonoidsterpenoidssteroids
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334
GATE2020: 7
$DNA$ synthesized from an $RNA$ template is called recombinant $DNA$ transcript $T-DNA$ complementary $DNA$
$DNA$ synthesized from an $RNA$ template is calledrecombinant $DNA$transcript$T-DNA$complementary $DNA$
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336
GATE2020: 9
During a positive-negative selection process, transformed animal cells expressing __________________ are killed in presence of ganciclovir in the medium. Pyruvate kinase viral thymidine kinase viral serine/threonine kinase viral tyrosine kinase
During a positive-negative selection process, transformed animal cells expressing __________________ are killed in presence of ganciclovir in the medium.Pyruvate kinasevi...
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337
GATE2020: 10
A vector derived from which one of the following viruses is used for high - frequency genomic integration of a transgene in animal cells? Adenoviru Adeno-associated virus Lentivirus Herpes simplex virus
A vector derived from which one of the following viruses is used for high - frequency genomic integration of a transgene in animal cells?AdenoviruAdeno-associated virusLe...
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339
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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340
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$$NaHCO_{3}$
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341
GATE2020: 14
Which of the following are energy transducing membranes? Plasma membrane of bacteria Inner membrane of chloroplasts Inner membrane of mitochondria $P$ and $Q$ only $P$ and $R$ only $Q$ and $R$ only $P, Q$ and $R$
Which of the following are energy transducing membranes?Plasma membrane of bacteriaInner membrane of chloroplastsInner membrane of mitochondria$P$ and $Q$ only$P$ and $R$...
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344
GATE2020: 17
A function $f$ is as follows: $f(x) = \begin{cases} 15 & \text{if }x<1 \\ cx& \text{if } x\geq 1 \end{cases}$ The function $f$ is a continuous function when $c$ is equal to ____________________ (answer in an integer).
A function $f$ is as follows:$$f(x) = \begin{cases} 15 & \text{if }x<1 \\ cx& \text{if } x\geq 1 \end{cases}$$The function $f$ is a continuous function when $c$ is equal ...
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345
GATE2020: 18
Given that $Z=X^{2}+Y^{2}$, the value of $\dfrac{\partial Z}{\partial X}$ for $X=1$ and $Y=0$ is ________________ (answer is an integer).
Given that $Z=X^{2}+Y^{2}$, the value of $\dfrac{\partial Z}{\partial X}$ for $X=1$ and $Y=0$ is ________________ (answer is an integer).
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348
GATE2019: 1
The Bt toxin gene from $Bacillus\; thuringiensis$ used to generate genetically modified crops is $cry$ $cro$ $cdc$ $cre$
The Bt toxin gene from $Bacillus\; thuringiensis$ used to generate genetically modified crops is$cry$$cro$$cdc$$cre$
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349
GATE2019: 2
Which one of the following is used as a $pH$ indicator in animal cell culture medium ? Acridine orange Phenol red Bromophenol blue Coomassie blue
Which one of the following is used as a $pH$ indicator in animal cell culture medium ?Acridine orange Phenol redBromophenol blueCoomassie blue
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350
GATE2019: 3
Tetracycline inhibits the interaction between $tRNA$ and $mRNA$ translocation of $mRNA$ through ribosome peptidyl transferase activity binding of amino-acyl $tRNA$ to ribosome
Tetracycline inhibits theinteraction between $tRNA$ and $mRNA$translocation of $mRNA$ through ribosomepeptidyl transferase activitybinding of amino-acyl $tRNA$ to ribosom...
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351
GATE2019: 4
Which one of the following is a database of protein sequence motifs? $PROSITE$ $TrEMBL$ $SWISSPROT$ $PDB$
Which one of the following is a database of protein sequence motifs?$PROSITE$$TrEMBL$$SWISSPROT$$PDB$
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352
GATE2019: 5
Which one of the following enzymes is encoded by human immunodeficiency virus $(HIV)$ genome? Reverse transcriptase Phospholipase Phosphatase $ATP$ synthase
Which one of the following enzymes is encoded by human immunodeficiency virus $(HIV)$ genome?Reverse transcriptasePhospholipasePhosphatase$ATP$ synthase
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353
GATE2019: 6
$DNA$ synthesis in eukaryotes occurs during which phase of the mitotic cell cycle? $M$ $G_{1}$ $S$ $G_{10}$
$DNA$ synthesis in eukaryotes occurs during which phase of the mitotic cell cycle?$M$$G_{1}$$S$$G_{10}$
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354
GATE2019: 7
Match the human diseases in $Group\; I$ with the causative agents in $Group\; II$ ... $P-3, Q-2, R-1, S-4$ $P-3, Q-4, R-1, S-2$ $P-4, Q-3, R-1,S-2$
Match the human diseases in $Group\; I$ with the causative agents in $Group\; II$.$$\begin{array}&&\textbf{Group I} & \textbf{Group II} \\ &\text{P. Amoebiasis} & \text{...
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355
GATE2019: 8
Which one of the following techniques can be used to compare the expression of a large number of genes in two biological samples in a single experiment? Polymerase chain reaction $DNA$ microarray Northern hybridization Southern hybridization
Which one of the following techniques can be used to compare the expression of a large number of genes in two biological samples in a single experiment?Polymerase chain r...
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356
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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357
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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358
GATE2019: 11
A mutation in a gene that codes for a polypeptide results in a variant polypeptide that lacks the last three amino acids. What type of mutation is this? Synonymous mutation Nonsense mutation Missense mutation Silent mutation
A mutation in a gene that codes for a polypeptide results in a variant polypeptide that lacks the last three amino acids. What type of mutation is this?Synonymous mutatio...
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