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281
GATE2020: 39
Which of the following strategies are used by cells for metabolic regulation? Phosphorylation-dephosphorylation Allostery Feedback inhibition $P$ and $Q$ only $P$ and $R$ only $Q$ and $R$ only $P, Q$ and $R$
Which of the following strategies are used by cells for metabolic regulation?Phosphorylation-dephosphorylationAllosteryFeedback inhibition$P$ and $Q$ only$P$ and $R$ only...
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285
GATE2020: 43
The sequence of a $1$ $Mb$ long $DNA$ is random. This $DNA$ has all four bases occurring in equal proportion. The number of nucleotides, on average, between two successive $EcoRI$ recognition site $GAATTC$ is ____________.
The sequence of a $1$ $Mb$ long $DNA$ is random. This $DNA$ has all four bases occurring in equal proportion. The number of nucleotides, on average, between two successiv...
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289
GATE2020: 48
Assume that a cell culture was started with five human fibroblast cells. Two cells did not divide even once whereas the other three cells completed three rounds of cell division. At this stage, the total number of kinetochores in all the cells put together is ___________________.
Assume that a cell culture was started with five human fibroblast cells. Two cells did not divide even once whereas the other three cells completed three rounds of cell d...
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295
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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296
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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298
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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300
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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301
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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303
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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304
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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306
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$
0 votes
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307
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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308
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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311
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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314
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$$cre$
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315
GATE2019: 2
Which one of the following is used as a $pH$ indicator in animal cell culture medium ? Acridine orange Phenol red Bromophenol blue Coomassie blue
Which one of the following is used as a $pH$ indicator in animal cell culture medium ?Acridine orange Phenol redBromophenol blueCoomassie blue
0 votes
0 answers
316
GATE2019: 3
Tetracycline inhibits the interaction between $tRNA$ and $mRNA$ translocation of $mRNA$ through ribosome peptidyl transferase activity binding of amino-acyl $tRNA$ to ribosome
Tetracycline inhibits theinteraction between $tRNA$ and $mRNA$translocation of $mRNA$ through ribosomepeptidyl transferase activitybinding of amino-acyl $tRNA$ to ribosom...
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317
GATE2019: 4
Which one of the following is a database of protein sequence motifs? $PROSITE$ $TrEMBL$ $SWISSPROT$ $PDB$
Which one of the following is a database of protein sequence motifs?$PROSITE$$TrEMBL$$SWISSPROT$$PDB$
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318
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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319
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$$G_{10}$
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320
GATE2019: 7
Match the human diseases in $Group\; I$ with the causative agents in $Group\; II$ ... $P-3, Q-2, R-1, S-4$ $P-3, Q-4, R-1, S-2$ $P-4, Q-3, R-1,S-2$
Match the human diseases in $Group\; I$ with the causative agents in $Group\; II$.$$\begin{array}&&\textbf{Group I} & \textbf{Group II} \\ &\text{P. Amoebiasis} & \text{...
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