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521
GATE2012-53
$\text{Statement for Linked Answer Questions 52 and 53:}$ An E $coli$ cell of volume $10^{-12}$ $cm^3$ contains 60 molecules of lac-repressor. The repressor has a binding affinity (${K_d}$) of $10^{-8}$ ... operon is repressed and can only be induced with lactose repressed and cannot be induced with lactose not repressed expressed only when glucose and lactose are present
$\text{Statement for Linked Answer Questions 52 and 53:}$An E $coli$ cell of volume $10^{-12}$ $cm^3$ contains 60 molecules of lac-repressor. The repressor has a binding ...
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GATE2012-54
$\beta$-Galactosidase bound to DEAE-cellulose is used to hydrolyze lactose to glucose and galactose in a plug flow bioreactor with a packed bed of volume $100$ liters and a voidage ($\epsilon$) of $0.55$. The $K'_m$ and $V'_m$; for the immobilized enzyme are $0.72 \: gl^{-1}$ and ... time required for the steady state reactor operation will be $0.1 \: h$ $0.4 \: h$ $1.0 \: h$ $1.1 \: h$
$\beta$-Galactosidase bound to DEAE-cellulose is used to hydrolyze lactose to glucose and galactose in a plug flow bioreactor with a packed bed of volume $100$ liters and...
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523
GATE2012-55
$\beta$-Galactosidase bound to DEAE-cellulose is used to hydrolyze lactose to glucose and galactose in a plug flow bioreactor with a packed bed of volume $100$ liters and a voidage ($\epsilon$) of $0.55$. The $K'_m$ and $V'_m$; for the immobilized enzyme are $0.72 \: gl^{-1}$ ... the above bioconversion will be $50 \: lh^{-1}$ $55 \: lh^{-1}$ $137 \: lh^{-1}$ $550 \: lh^{-1}$
$\beta$-Galactosidase bound to DEAE-cellulose is used to hydrolyze lactose to glucose and galactose in a plug flow bioreactor with a packed bed of volume $100$ liters and...
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524
GATE2012-43
Match the high energy compounds in $\text{Group I}$ with the biosynhetic pathways for the molecules in $\text{Group II}$ ... $\text{P-2, Q-4, R-3, S-1}$ $\text{P-4, Q-3, R-1, S-2}$ $\text{P-3, Q-4, R-2, S-1}$
Match the high energy compounds in $\text{Group I}$ with the biosynhetic pathways for the molecules in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I...
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525
GATE2012-44
Match the vitamins in $\text{Group I}$ with the processes/reactions in $\text{Group II}$ ... $\text{P-4, Q-2, R-1, S-3}$ $\text{P-2, Q-1, R-3, S-5}$
Match the vitamins in $\text{Group I}$ with the processes/reactions in $\text{Group II}$$\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline P. ...
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526
GATE2012-46
An enzymatic reaction is described by the following rate expression. $v = \frac{v_mS}{K_m+S+S^2/K_s},$ Which one of the following curves represents this expression?
An enzymatic reaction is described by the following rate expression.$$v = \frac{v_mS}{K_m+S+S^2/K_s},$$Which one of the following curves represents this expression?
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527
GATE2012-47
A bacterial culture ($200 \: \mu l$ containing $1.8 \times 10^9$ cells) was treated with an antibiotic $Z$ ($50 \: \mu g$ per $ml$) for $4$ h at $37^\circ C$. After this treatment, the culture was divided into two equal ... , whereas the Set B plate showed $0.9 \times 10^9$ cells. This experiment showed that the antibiotic $Z$ is bacteriostatic bacteriocidal bacteriolytic apoptotic
A bacterial culture ($200 \: \mu l$ containing $1.8 \times 10^9$ cells) was treated with an antibiotic $Z$ ($50 \: \mu g$ per $ml$) for $4$ h at $37^\circ C$. After this ...
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528
GATE2012-48
In a muscle, the extracellular and intracellular concentrations of ${Na^+}$ are $150 \text{ mM}$ and $12 \text{ mM}$, and those of ${K^+}$ are $2.7 \text{ mM}$ and $140 \text{ mM}$, respectively. Assume that the temperature is ${25^\circ C}$ ... the cell is $+1.5 \text{ kJ/mol}$ $+17.4\text{ kJ/mol}$ $+18.9 \text{ kJ/mol}$ $+36.3 \text{ kJ/mol}$
In a muscle, the extracellular and intracellular concentrations of ${Na^+}$ are $150 \text{ mM}$ and $12 \text{ mM}$, and those of ${K^+}$ are $2.7 \text{ mM}$ and $140 \...
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GATE2012-49
$\text{Common Data Questions}$ $\text{Common Data for Questions 48 and 49}$: In a muscle, the extracellular and intracellular concentrations of ${Na^+}$ are $\text{150 mM}$ and $\text{12 mM}$, and those of ${K^+}$ are $\text{2.7 mM}$ and $\text{140 mM}$, respectively. Assume that ... into the cell is $\text{+8.0 kJ/mol}$ $\text{+11.6 kJ/mol}$ $\text{+19.6 kJ/mol}$ $\text{+31.2 kJ/mol}$
$\text{Common Data Questions}$$\text{Common Data for Questions 48 and 49}$:In a muscle, the extracellular and intracellular concentrations of ${Na^+}$ are $\text{150 mM}$...
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GATE2012-35
Determine the correctness or otherwise of the following $Assertion$ (a) and $Reason$ (r). $Assertion:$ Plants convert fatty' acids into glucose. $Reason:$ Plants have peroxisomes. Both (a) and (r) are true and (r) is not the correct reason for (a) Both (a) and (r) are true and (r) is the correct reason for (a) (a) is true but (r) is false (a) is false but (r) is true
Determine the correctness or otherwise of the following $Assertion$ (a) and $Reason$ (r).$Assertion:$ Plants convert fatty' acids into glucose. $Reason:$ Plants have ...
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GATE2012-36
Determine the correctness or otherwise of the following $Assertion$ (a) and $Reason$ (r). $Assertion:$ In direct somatic embryogenesis, embryos are developed without going through callus formation. $Reason:$ This is possible due to the presence of pre-embryonically determined cells. Both (a) ... ) is true but (r) is false Both (a) and (r) are true and (r) is the correct reason for (a)
Determine the correctness or otherwise of the following $Assertion$ (a) and $Reason$ (r).$Assertion:$ In direct somatic embryogenesis, embryos are developed without going...
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532
GATE2012-37
Match the entries in $\text{Group I}$ with the process parameters in $\text{Group II}$ ... $\text{P_4, Q-2, R-3, S-1}$ $\text{P-2, Q-4, R-1, S-3}$ $\text{P-2, Q-1, R-4, S-3}$
Match the entries in $\text{Group I}$ with the process parameters in $\text{Group II}$.$\begin{array}{|C|l|C|l|} \hline &\textbf{Group I} & {} & \text{Group II} \\\hline ...
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533
GATE2012-38
Match the downstream processes in $\text{Group I}$ with the products in $\text{Group II}$ ... $\text{P-4, Q-1, R-3, S-2}$ $\text{P-2, Q-4, R-1, S-3}$
Match the downstream processes in $\text{Group I}$ with the products in $\text{Group II}$.$\begin{array}{|C|l|C|l|} \hline& \textbf{Group I} & {} & \textbf{Group II} \\\h...
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GATE2012-39
Determine the correctness or otherwise of the following $Assertion$ (a) and $Reason$ (r). $Assertion:$ Cell mass yield of a methylotrophic yeast is more on methanol compared to glucose. $Reason:$ Methanol has a greater degree of reductance compared to glucose. Both (a) and (r) are ... (a) is false, (r) is correct Both (a) and (r) are correct but (r) is not the correct reason for (a)
Determine the correctness or otherwise of the following $Assertion$ (a) and $Reason$ (r).$Assertion:$ Cell mass yield of a methylotrophic yeast is more on methanol compar...
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535
GATE2012-41
Match the organisms in Group I with the entries in Group II. ... $\text{P-5, Q-4, R-2, S-3}$ $\text{P-3, Q-2, R-1, S-4}$
Match the organisms in Group I with the entries in Group II.$\begin{array}{|l|l|l|l|} \hline & \textbf{Group I}. && \textbf{Group II} \\ \hline P. & \textit{Clostridium...
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536
GATE2012-42
Match the entries in $\text{Group I}$ with the methods of sterilization in $\text{Group II}$ ... $\text{P-1, Q-4, R-5, S-3}$ $\text{P-2, Q-1, R-4, S-3}$ $\text{P-4, Q-1, R-3, S-5}$
Match the entries in $\text{Group I}$ with the methods of sterilization in $\text{Group II}$$\begin{array}{|l|l|l|l|} \hline & \textbf{Group I} && \text{Group II} \\ \h...
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GATE2012-28
Match the entries in $\textbf{Group I}$ with those in $\textbf{Group II}$ ... $\text{P-2, Q-4, R-1,S-3}$ $\text{P-2, Q-3, R-4, S-1}$ $\text{P-4, Q-2, R-1, S-3}$
Match the entries in $\textbf{Group I}$ with those in $\textbf{Group II}$.$\begin{array}{|c|l|c|l|}\hline &\textbf{Group I} & {} & \textbf{Group II} \\\hline P. & \text{M...
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GATE2012-29
In an exponentially growing batch culture of $\text{Saccharormyces cerevisiae}$, the cell density is 20 ${gl^{-1}}$ (DCW), the specific growth rate ($\mu$) is 0.4 ${h^{-1}}$ and substrate uptake rate (v) 1s 16 $gl^{-1}h^{-1}$. The cell yield coefficient $Y_{x/9}$, will be 0.32 0.64 0.80 0.50
In an exponentially growing batch culture of $\text{Saccharormyces cerevisiae}$, the cell density is 20 ${gl^{-1}}$ (DCW), the specific growth rate ($\mu$) is 0.4 ${h^{-1...
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GATE2012-30
A single base pair of DNA weighs $1.1 \times 10^{-21}$ grams. How many picomoles of a plasmid vector of length $2750$ bp are contained in 1 $\mu$g of purified DNA? $0.30$ $0.55$ $0.25$ $0.91$
A single base pair of DNA weighs $1.1 \times 10^{-21}$ grams. How many picomoles of a plasmid vector of length $2750$ bp are contained in 1 $\mu$g of purified DNA?$0.30$$...
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540
GATE2012-31
Match the terms in $\textbf{Group I}$ with the ploidy in $\textbf{Group II}$ ... $\text{P-4, Q-3, R-1, S-2}$ $\text{P-2, Q-3, R-4, S-1}$ $\text{P-l, Q-4, R-3, S-2}$
Match the terms in $\textbf{Group I}$ with the ploidy in $\textbf{Group II}$.$\begin{array}{|C|l|C|l|} \hline &\textbf{Group I} & {} &\textbf{Group II} \\\hline P. &\text...
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GATE2012-33
Match the products in $\text{Group I}$ with the applications in $\text{Group II}$ ... $\text{P-3, Q-4, R-1, S-2}$ $\text{P-2, Q-3, R-1, S-4}$
Match the products in $\text{Group I}$ with the applications in $\text{Group II}$.$\begin{array}{|C|l|C|l|} \hline &\textbf{Group I} & {} &\textbf{Group II} \\\hline P. ...
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GATE2012-34
Determine the correctness or otherwise of the following $Assertion$ (a) and $Reason$ (r). $Assertion:$ The production of secondary metabolites in plant cell cultures is enhanced by the addition of elicitors. $Reason:$ Elicitors induce the expression of enzymes responsible for the biosynthesis of ... is the correct reason for (a) (a) is true but (r) is false (a) is false but (r) is true
Determine the correctness or otherwise of the following $Assertion$ (a) and $Reason$ (r).$Assertion:$ The production of secondary metabolites in plant cell cultures is en...
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GATE2012-21
Synteny refers to gene duplication from a common ancestor a tree representation of related sequences the extent of similarity between two sequences local conservation of gene order
Synteny refers togene duplication from a common ancestora tree representation of related sequencesthe extent of similarity between two sequenceslocal conservation of gene...
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GATE2012-22
While searching a database for similar sequences, E value does NOT depend on the sequence length number of sequences in the database scoring system probability from a normal distribution
While searching a database for similar sequences, E value does NOT depend on thesequence lengthnumber of sequences in the databasescoring systemprobability from a normal ...
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GATE2012-23
In transmission electron microscopy, electron opacity is greatly enhanced by treating the specimen with ferrous ammonium sulfate uranium acetate sodium chloride basic fuchsin
In transmission electron microscopy, electron opacity is greatly enhanced by treating the specimen withferrous ammonium sulfateuranium acetatesodium chloridebasic fuchsin...
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GATE2012-24
The molarity of water in a water : ethanol mixture ($15 : 85$, v/v) is approximately $0.85$ $5.55$ $8.5$ $55.5$
The molarity of water in a water : ethanol mixture ($15 : 85$, v/v) is approximately$0.85$$5.55$$8.5$$55.5$
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GATE2012-25
The helix content of a protein can be determined using an infrared spectrometer a fluorescence spectrometer a circular dichroism spectrometer a UV-Visible spectrophotometer
The helix content of a protein can be determined usingan infrared spectrometera fluorescence spectrometera circular dichroism spectrometera UV-Visible spectrophotometer
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GATE2012-26
Which one of the following DNA sequences carries an invert repeat? ATGAGCCCCGAGTATACTCGGGGCTCAT ATGAGCCGGCTCTATACTCGGCCGAGAT ATGAGCCGAGCCTAACTCGGCTCGGAT ATGAGCCTATGGTATACTCGGATACCAT
Which one of the following DNA sequences carries an invert repeat?ATGAGCCCCGAGTATACTCGGGGCTCATATGAGCCGGCTCTATACTCGGCCGAGATATGAGCCGAGCCTAACTCGGCTCGGATATGAGCCTATGGTATACTCGG...
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GATE2012-27
In zinc finger proteins, the amino acid residues that coordinate zinc are Cys and His Asp and Glu Arg and Lys Asp and Arg
In zinc finger proteins, the amino acid residues that coordinate zinc areCys and HisAsp and GluArg and LysAsp and Arg
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GATE2012-13
Protein-DNA interactions $\text{in vivo}$ can be studied by gel shift assay Southern hybridization chromatin immunoprecipitation assay fluorescence $\text{in situ}$ hybridization assay
Protein-DNA interactions $\text{in vivo}$ can be studied bygel shift assaySouthern hybridizationchromatin immunoprecipitation assayfluorescence $\text{in situ}$ hybridiza...
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GATE2012-14
The direction of shell coiling in the snail $\text{Limnaea peregra}$ is a classic example of chromosomal inheritance extra-chromosomal inheritance chromosomal translocation homologous recombination
The direction of shell coiling in the snail $\text{Limnaea peregra}$ is a classic example ofchromosomal inheritanceextra-chromosomal inheritancechromosomal translocationh...
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GATE2012-15
During photorespiration under low $CO_2$ and high $O_2$ levels, $O_2$ reacts with ribulose1,5- bisphosphate to yield one molecule each of 3-phosphoglycerate and 2-phosphoglycolate two molecules of 3-phosphoglycerate two molecules of 2-phosphoglycolate one molecule each of 3-phosphoglycerate and glyoxylate
During photorespiration under low $CO_2$ and high $O_2$ levels, $O_2$ reacts with ribulose1,5- bisphosphate to yieldone molecule each of 3-phosphoglycerate and 2-phosphog...
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GATE2012-16
Which one of the following is NOT a protoplast fusion inducing agent? Inactivated Sendai virus $Ca^{2+}$ at alkaline pH Polyethylene glycol Colchicine
Which one of the following is NOT a protoplast fusion inducing agent?Inactivated Sendai virus$Ca^{2+}$ at alkaline pHPolyethylene glycolColchicine
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GATE2012-17
The activity of an enzyme is expressed in International Units (IU). However, the S.I unit for enzyme activity is Katal. One Katal is $1.66 \times {10^4}$ IU $60$ IU $6 \times {10^7}$ IU ${10^6}$ IU
The activity of an enzyme is expressed in International Units (IU). However, the S.I unit for enzyme activity is Katal. One Katal is$1.66 \times {10^4}$ IU$60$ IU$6 \time...
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GATE2012-18
Identify the statement that is NOT applicable to an enzyme catalyzed reaction. Enzyme catalysis involves propinquity effects The binding of substrate to the active site causes a strain in the substrate Enzymes do not accelerate the rate of reverse reaction Enzyme catalysis involves acid-base chemistry
Identify the statement that is NOT applicable to an enzyme catalyzed reaction.Enzyme catalysis involves propinquity effectsThe binding of substrate to the active site cau...
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GATE2012-19
An example of a derived protein structure database is Pfam SCOP GEO Prosite
An example of a derived protein structure database isPfamSCOPGEOProsite
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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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GATE2012-6
A humanized antibody is one in which the heavy and light chains are from human heavy chain is from human and light chain is from mouse light chain is from human and heavy chain is from mouse CDRs are from mouse, and the rest is from human
A humanized antibody is one in which theheavy and light chains are from humanheavy chain is from human and light chain is from mouselight chain is from human and heavy ch...
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GATE2012-7
Dimethyl sulfoxide (DMSO) is used as a cryopreservant for mammalian cell cultures because it is an organic solvent it easily penetrates cells it protects cells by preventing crystallization of water it is also utilized as a nutrient
Dimethyl sulfoxide (DMSO) is used as a cryopreservant for mammalian cell cultures becauseit is an organic solventit easily penetrates cellsit protects cells by preventing...
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GATE2012-8
Nude mice refers to mice without skin mice without thymus knockout mice transgenic mice
Nude mice refers tomice without skinmice without thymusknockout micetransgenic mice
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