Hot questions in Others / GO BioTechnology

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521

GATE2014-42
The percentage $\text{SIMILARITIES and IDENTITIES,}$ respectively, between the two peptide sequences given below will be ____________ $\%$ and ____________ $\%$ Peptide I : $\text{Ala-Ala-Arg-Arg-Gln-Trp-Leu-Thr-Phe-Thr-Lys-Ile-Met-Ser-Glu}$ Peptide II: $\text{Ala-Ala-Arg-Glu-Gln-Tyr-Ile-Ser-Phe-Thr-Lys-Ile-Met-Arg-Asp}$ $80, 80$ $80, 60$ $60, 60$ $90, 60$

The percentage $\text{SIMILARITIES and IDENTITIES,}$ respectively, between the two peptide sequences given below will be ____________ $\%$ and ____________ $\%$Peptide I ...

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522

GATE2014-37
Consider a population of $10,000$ individuals, of which $2500$ are homozygotes (PP) and $3000$ are heterozygotes (Pp) genotype. The frequency of allele p in the population is_________.

Consider a population of $10,000$ individuals, of which $2500$ are homozygotes (PP) and $3000$ are heterozygotes (Pp) genotype. The frequency of allele p in the populatio...

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523

GATE2014-35
In a relatively large but finite and closed population of sexually reproducing diploid organisms, the frequency of homozygous genotype PP changes from 0.40 to 0.50 and that of pp changes om 0.40 to 0.41 in a span of 10 generations. Which ... change in frequency of the PP genotype? Non-random mating Random genetic drift Selection Combination of non-random mating and random genetic drift

In a relatively large but finite and closed population of sexually reproducing diploid organisms, the frequency of homozygous genotype PP changes from 0.40 to 0.50 and th...

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524

GATE2013-28
Determine the correctness or otherwise of the following $\text{Assertion (a)}$ and $\text{Reason (r)}.$ $\text{Assertion:}$ Immobilization of plant cells can enhance secondary metabolite production during bioreactor cultivation. $\text{Reason:}$ Immobilization protects the plant cells from shear forces in ... for $(a)$ $(a)$ is true but $(r)$ is false $(a)$ is false but $(r)$ is true

Determine the correctness or otherwise of the following $\text{Assertion (a)}$ and $\text{Reason (r)}.$$\text{Assertion:}$ Immobilization of plant cells can enhance secon...

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525

GATE2014-25
The growth medium for mammalian cells contains serum. One of the major functions of serum is to stimulate cell growth and attachment. However, it must be filter sterilized to remove large proteins remove collagen only remove mycoplasma and microorganisms remove foaming agents

The growth medium for mammalian cells contains serum. One of the major functions of serum is to stimulate cell growth and attachment. However, it must be filter sterilize...

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526

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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527

GATE2014-26
The concentration profile of a chemical at a location $x$ and time $t$, denoted by $c(x,t)$, changes as per the following equation, $c(x,t)=\frac{c_0}{\sqrt{2\pi Dt}}\exp[-\frac{x^2}{2Dt}]$ where $D$ and $c_0$ are assumed to be constant. Which of the following is ... $\frac{\partial^2 c}{\partial t^2}=\frac{D}{2}\frac{\partial^2 c}{\partial x^2}$

The concentration profile of a chemical at a location $x$ and time $t$, denoted by $c(x,t)$, changes as per the following equation,$$c(x,t)=\frac{c_0}{\sqrt{2\pi Dt}}\exp...

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528

GATE2014-55
The active site in the alpha/beta barrel structures is usually located inside the barrel at the amino side of the strands at the carboxy side of the strands at any arbitrary site

The active site in the alpha/beta barrel structures is usually locatedinside the barrelat the amino side of the strandsat the carboxy side of the strandsat any arbitrary ...

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529

GATE2013-25
In a batch culture, the specific rate of substrate utilization is $\text{0.25 g (g cell mass)}$^{-1} h^{-1}$ and specific rate of product formation is $\text{0.215 g (g cell mass)}$^{-1}h^{-1}$ . Calculate the yield of product from the substrate$(Y_{p/s})$._______________

In a batch culture, the specific rate of substrate utilization is $\text{0.25 g (g cell mass)}$$^{-1} h^{-1}$ and specific rate of product formation is $\text{0.215 g (g ...

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530

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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531

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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532

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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533

GATE2012-50
Answer the question based on the information given below: The purification data for an enzyme is given below: ... $P-1, Q- 6.6, R-8.4, S- 12.6$ $P-100, Q- 66 , R-84, S- 12$

Answer the question based on the information given below:The purification data for an enzyme is given below:$\begin{array}{|l|l|l|l|l|l|} \hline & \text{Step} & \text{Vol...

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534

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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535

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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536

GATE2013-34
The activity of an enzyme was measured by varying the concentration of the substrate $(S)$ in the presence of three different concentrations of inhibitor $\text{(I) 0, 2 and 4 mM.}$ The double reciprocal plot given below suggests that the inhibitor $(I)$ exhibits substrate inhibition uncompetitive inhibition mixed inhibition competitive inhibition

The activity of an enzyme was measured by varying the concentration of the substrate $(S)$ in the presence of three different concentrations of inhibitor $\text{(I) 0, 2 ...

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537

GATE2012-1
In mismatch correction repair, the parental DNA strand is distinguished from the daughter strand by acetylation phosphorylation methylation glycosylation

In mismatch correction repair, the parental DNA strand is distinguished from the daughter strand byacetylationphosphorylationmethylationglycosylation

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538

GATE2012-3
Idiotypic determinants of an antibody are associated with the constant region of the heavy chains constant region of the light chains variable region constant regions of light and heavy chains

Idiotypic determinants of an antibody are associated with theconstant region of the heavy chainsconstant region of the light chainsvariable regionconstant regions of ligh...

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539

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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540

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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541

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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542

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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543

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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544

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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545

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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546

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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547

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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548

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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549

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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550

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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551

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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552

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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553

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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554

GATE2012-52
$\text{Statement for Linked Answer Questions 52 and 53:}$ 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 $10^{-8}$ M and $10^{-9}$ M with and without lactose respectively, in the ... The molar concentration of the repressor in the cell 15 $\text{0.1 nM}$ $\text{1 nM}$ $\text{10 nM}$ $\text{100 nM}$

$\text{Statement for Linked Answer Questions 52 and 53:}$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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555

GATE2012-5
B-lymphocytes originate from the bone marrow whereas T-lymphocytes originate from thymus bone marrow spleen liver

B-lymphocytes originate from the bone marrow whereas T-lymphocytes originate fromthymusbone marrowspleenliver

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556

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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557

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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558

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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559

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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560

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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