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Recent questions and answers in General Biology
0
votes
1
answer
1
GATE2018-38
A pedigree of an inheritable disease is shown below. What type of inheritance does the disease follow? Autosomal dominant X-linked dominant X-linked recessive Autosomal recessive
A pedigree of an inheritable disease is shown below.What type of inheritance does the disease follow?Autosomal dominantX-linked dominantX-linked recessiveAutosomal recess...
Anamika97
180
points
Anamika97
answered
Dec 15, 2020
Immunology
gate2018
immunology
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–
0
votes
1
answer
2
GATE2018-7
Which one of the following BLAST search programs is used to identify homologs of a genomic DNA query in a protein sequence database? blastp blastn blastx tblastn
Which one of the following BLAST search programs is used to identify homologs of a genomic DNA query in a protein sequence database?blastpblastnblastxtblastn
mahek01
300
points
mahek01
answered
Oct 31, 2020
Bioinformatics
gate2018
bioinformatics
+
–
0
votes
1
answer
3
GATE2018-18
Identify the character based method(s) used for the construction of a phylogenetic tree. Maximum parsimony Neighbor joining Maximum likelihood Bootstrapping Q only P and R only Q and S only S only
Identify the character based method(s) used for the construction of a phylogenetic tree.Maximum parsimonyNeighbor joiningMaximum likelihoodBootstrappingQ onlyP and R only...
mahek01
300
points
mahek01
answered
Oct 31, 2020
Bioinformatics
gate2018
bioinformatics
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–
0
votes
1
answer
4
GATE2018-29
Determine the correctness or otherwise of the following Assertion [a] and the Reason [r] Assertion: Ab initio gene finding algorithms that predict protein coding genes in eukaryotic genomes are not completely accurate. Reason: Eukaryotic splice sites are difficult to predict. Both [a] and [ ... correct reason for [a] Both [a] and [r] are true but [r] is not the correct reason for [a]
Determine the correctness or otherwise of the following Assertion [a] and the Reason [r]Assertion: Ab initio gene finding algorithms that predict protein coding genes in ...
mahek01
300
points
mahek01
answered
Oct 31, 2020
Bioinformatics
gate2018
bioinformatics
+
–
0
votes
1
answer
5
GATE2018-37
An analysis of DNA-protein interactions was carried out using all DNA-protein complexes in the protein data bank (PDB). The frequency distribution of four amino acid residues, represented as P, Q, R and S, occurring in non-covalent interactions between the protein and DNA backbone is shown below. Which ... Gln, Q-Glu, R-Lys, S-Arg P-Asn, Q-Asp, R-Arg, S-Lys P-His, Q-Glu, R-Gln, S-Lys
An analysis of DNA-protein interactions was carried out using all DNA-protein complexes in the protein data bank (PDB). The frequency distribution of four amino acid resi...
mahek01
300
points
mahek01
answered
Oct 31, 2020
Bioinformatics
gate2018
bioinformatics
molecular
biology
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–
0
votes
1
answer
6
GATE2018-51
Consider the following alignment of two DNA sequences:$\mathbf{AGTAAC} \\ \mathbf{AA}\text{- -}\mathbf{AC}$Assuming an affine gap scoring scheme of an identity matrix for substitution, a gap initiation penalty of $1$ and a gap extension penalty of $0.1$, the score of the alignment is (up to one decimal place) __________
Consider the following alignment of two DNA sequences:$$\mathbf{AGTAAC} \\ \mathbf{AA}\text{- -}\mathbf{AC}$$Assuming an affine gap scoring scheme of an identity matrix f...
mahek01
300
points
mahek01
answered
Oct 31, 2020
Bioinformatics
gate2018
bioinformatics
numerical-answers
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–
0
votes
0
answers
7
GATE2014-7
If the dissociation constant for solute-adsorbent binding is $K_D$, the retention time of the solute in a chromatography column increases with increasing $K_D$ decreases with increasing $K_D$ passes through minimum with increasing $K_D$ is independent of $K_D$
If the dissociation constant for solute-adsorbent binding is $K_D$, the retention time of the solute in a chromatography columnincreases with increasing $K_D$decreases wi...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Biochemistry
gate2014
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0
votes
0
answers
8
GATE2014-9
The most plausible explanation for a sudden increase of the respiratory quotient $(RQ)$ of a microbial culture is that cells are dying yield of biomass is increasing the fermentation rate is increasing relative to respiration rate the maintenance rate is decreasing
The most plausible explanation for a sudden increase of the respiratory quotient $(RQ)$ of a microbial culture is thatcells are dyingyield of biomass is increasingthe fer...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Microbiology
gate2014
microbial-growth
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–
0
votes
0
answers
9
GATE2014-13
Gram-positive bacteria are generally resistant to complement-mediated lysis because thick peptidoglycan layer prevents insertion of membrane attack complex into the irmer membrane Gram-positive bacteria import the membrane attack complex and inactivate it ... degraded by the proteases produced by the Gram-positive bacteria Gram-positive bacteria cannot activate the complement pathway
Gram-positive bacteria are generally resistant to complement-mediated lysis becausethick peptidoglycan layer prevents insertion of membrane attack complex into the irmer ...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Microbiology
gate2014
bacterial
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–
0
votes
0
answers
10
GATE2014-15
Which of the following essential element(s) is/are required as major supplement to enhance the bioremediation of oil spills by the resident bacteria? Sulfur Nitrogen and phosphorus Iron Carbon
Which of the following essential element(s) is/are required as major supplement to enhance the bioremediation of oil spills by the resident bacteria?SulfurNitrogen and ph...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Microbiology
gate2014
bacterial
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–
0
votes
0
answers
11
GATE2014-17
The product(s) resulting from the hydrolysis of maltose is/are a mixture of $\alpha$-D-Glucose and $\beta$-D-Glucose a mixture of D-Glucose and L-Glucose $\alpha$-D-Glucose only $\beta$-D-Glucose only
The product(s) resulting from the hydrolysis of maltose is/area mixture of $\alpha$-D-Glucose and $\beta$-D-Glucosea mixture of D-Glucose and L-Glucose$\alpha$-D-Glucose ...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Biochemistry
gate2014
glucose
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–
0
votes
0
answers
12
GATE2014-18
Amino acid residue which is most likely to be found in the interior of water-soluble globular proteins is Threonine Aspartic acid Valine Histidine
Amino acid residue which is most likely to be found in the interior of water-soluble globular proteins isThreonineAspartic acidValineHistidine
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Biochemistry
gate2014
aminoacids
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–
0
votes
0
answers
13
GATE2014-20
Prior exposure of plants to pathogens is known to increase resistance to future pathogen attacks.This phenomenon is known as systemic acquired resistance hypersensitive response innate immunity antibody mediated response
Prior exposure of plants to pathogens is known to increase resistance to future pathogen attacks.This phenomenon is known assystemic acquired resistancehypersensitive res...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Immunology
gate2014
history-of-immunology
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–
0
votes
0
answers
14
GATE2014-21
Reactions between antibodies and antigens that are detected by precipitate formation in an agar gel are referred as immunoprecipitation assay immunodiffusion assay immunoaggregation assay immunofixation assay
Reactions between antibodies and antigens that are detected by precipitate formation in an agar gel are referred asimmunoprecipitation assayimmunodiffusion assayimmunoagg...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Immunology
gate2014
antigen-antibody-reactions
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–
0
votes
0
answers
15
GATE2014-24
The reactions leading to the formation of amino acids from the TCA cycle intermediates are carboxylation isomerization transamination decarboxylation
The reactions leading to the formation of amino acids from the TCA cycle intermediates arecarboxylationisomerizationtransaminationdecarboxylation
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Biochemistry
gate2014
aminoacids
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–
0
votes
0
answers
16
GATE2013-51
Which one of the receptors has the highest affinity for the ligand? $R1$ $R2$ $R3$ $R4$
Which one of the receptors has the highest affinity for the ligand?$R1$$R2$$R3$$R4$
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Immunology
gate2013
antigen
antibody-and-structure
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–
0
votes
0
answers
17
GATE2013-50
Common Data for Questions 50 and 51:The binding eciency of three diamt receptorsRL R2 and R3 were tested against a ligand usirequilibrium dialysis, uith a constant concentration of receptor and varying concentrations of ligand- TlScatchard plot of receptor titration with diermt concentration ... sites present on receptors R1 and R3, respectively are 1 and 4 l and l 4 and 1 2 and 2
Common Data for Questions 50 and 51:The binding eciency of three diamt receptorsRL R2 and R3 were tested against a ligand usirequilibrium dialysis, uith a constant concen...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Immunology
gate2013
antigen
antibody-structure-and-function
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–
0
votes
0
answers
18
GATE2013-43
The total number of fragments generated by the complete and sequential cleavage of the polypeptide given below by Trypsin followed by $CNBr$ is __________. $Phe-Trp-Met-Gly-Ala-Lys-Leu-Pro-Met-Asp-Gly-Arg-Cys-Ala-Gln$
The total number of fragments generated by the complete and sequential cleavage of the polypeptide given below by Trypsin followed by $CNBr$ is __________.$Phe-Trp-Met-Gl...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Biochemistry
gate2013
aminoacids
numerical-answers
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–
0
votes
0
answers
19
GATE2013-37
Match the entries in the $\text{Group I}$ with the entries in $\text{Group II}$ ... $\text{P-2, Q-1, R-3, S-4}$ $\text{P-3, Q-4, R-2, S-1}$ $\text{P-1, Q-4, R-3, S-2}$
Match the entries in the $\text{Group I}$ with the entries in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline P. & \text{...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Molecular Biology and Genetics:
gate2013
chromosome
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–
0
votes
0
answers
20
GATE2013-35
Match the entries in $\text{Group I}$ with the entries in $\text{Group II}$ ... $\text{P-4, Q-3, R-2, S-1}$ $\text{P-3, Q-2, R-1, S-4}$ $\text{P-2, Q-4, R-1, S-3}$
Match the entries in $\text{Group I}$ with the entries in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline P. & \text{RNA...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Molecular Biology and Genetics:
gate2013
dna-rna
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–
0
votes
0
answers
21
GATE2013-32
Match the entries in $\text{Group I}$ with the enzymes in $\text{Group II}$ ... $\text{P-4, Q-1, R-3, S-2}$ $\text{P-3, Q-1, R-4, S-2}$ $\text{P-3, Q-4, R-2, S-1}$
Match the entries in $\text{Group I}$ with the enzymes in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline P. & \text{NAD}...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Biochemistry
gate2013
engyme
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–
0
votes
0
answers
22
GATE2013-27
Match the entries in the $\text{Group I}$ with the elution conditions in $\text{Group II}$ ... $\text{P-3, Q-4, R-1, S-2}$ $\text{P-3, Q-4, R-2, S-1}$
Match the entries in the $\text{Group I}$ with the elution conditions in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Analytical Techniques
gate2013
principles-of-chromatography
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–
0
votes
0
answers
23
GATE2013-29
Match the cell structures in $\text{Group I}$ with the organisms in $\text{Group II}$ ... $\text{P-3, Q-4, R-1, S-2}$ $\text{P-4, Q-1, R-3, S-2}$
Match the cell structures in $\text{Group I}$ with the organisms in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline P. & ...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Microbiology
gate2013
organisms
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–
0
votes
0
answers
24
GATE2013-30
Match the antibiotics in $\text{Group I}$ wiith the targets in $\text{Group II}$ ... $\text{P-4, Q-1, R-2, S-3}$ $\text{P-3, Q-4, R-2, S-1}$
Match the antibiotics in $\text{Group I}$ wiith the targets in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} & & \text{Group II} \\ \hline P. & \t...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Molecular Biology and Genetics:
gate2013
+
–
0
votes
0
answers
25
GATE2013-31
In nature, $\text{Agrobacterium tumefaciens}$ mediated infection of plant cells leads to P. crown gall disease in plants Q. hairy root disease in plants R. transfer of $\text{T-DNA}$ into the plant chromosome S. transfer of Ri-plasmid into the plant cell S only P and R only Q and S only Q only
In nature, $\text{Agrobacterium tumefaciens}$ mediated infection of plant cells leads toP. crown gall disease in plantsQ. hairy root disease in plantsR. transfer of $\tex...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Molecular Biology and Genetics:
gate2013
microbial-genetics
+
–
0
votes
0
answers
26
GATE2013-33
Match the herbicides in $\text{Group I}$ with the target enzymes in $\text{Group II}$ ... $\text{P-4, Q-3, R-2, S-1}$ $\text{P-3, Q-2, R-4, S-1}$
Match the herbicides in $\text{Group I}$ with the target enzymes in $\text{Group II}$ $\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline P. & ...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Biochemistry
gate2013
enzyme
+
–
0
votes
0
answers
27
GATE2013-26
Match the commercial microbial sources in $\text{Group I}$ with the products in $\text{Group II}$ ... $\text{P-3,Q-1,R-4,S-2}$ $\text{P-1,Q-3,R-2,S-4}$ $\text{P-1,Q-3,R-4,S-2}$
Match the commercial microbial sources in $\text{Group I}$ with the products in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} & & \text{Group II} \...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Microbiology
gate2013
microbial-classification
+
–
0
votes
0
answers
28
GATE2013-19
Hypophosphatemia is manifested by an $X-$linked dominant allele.What proportion of the offsprings from a normal male and an affected heterozygous female will manifest the disease? $1/2$ sons and $1/2$daughters all daughters and no sons all sons and no daughters $1/4$ daughters and $1/4$ sons
Hypophosphatemia is manifested by an $X-$linked dominant allele.What proportion of the offsprings from a normal male and an affected heterozygous female will manifest the...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Molecular Biology and Genetics:
gate2013
genetic-diseases
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–
0
votes
0
answers
29
GATE2013-13
The catalytic efficiency for an enzyme is defined as $K_{cat}$ $\frac{V_{max}}{K_{cat}}$ $\frac{k_{cat}}{K_m}$ $\frac{K_{cat}}{V_{max}}$
The catalytic efficiency for an enzyme is defined as$K_{cat}$$\frac{V_{max}}{K_{cat}}$$\frac{k_{cat}}{K_m}$$\frac{K_{cat}}{V_{max}}$
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Biochemistry
gate2013
enzyme
+
–
0
votes
0
answers
30
GATE2013-12
Which one of the following is an $ABC$ transporter? multidrug resistance protein acetylcholine receptor bacteriorhodopsin $ATP$ synthase
Which one of the following is an $ABC$ transporter?multidrug resistance proteinacetylcholine receptorbacteriorhodopsin$ATP$ synthase
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Biochemistry
gate2013
transporter
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–
0
votes
0
answers
31
GATE2013-7
Endogenous antigens are presented on to the cell surface along with $MHC-II$ $MHC-I$ $F_c\gamma$receptor complement receptor
Endogenous antigens are presented on to the cell surface along with$MHC-II$$MHC-I$$F_c\gamma$receptorcomplement receptor
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Molecular Biology and Genetics:
gate2013
receptor
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–
0
votes
0
answers
32
GATE2013-6
The role of an adjuvant isto prolong the persistence of antigen cross link the antigen increase the size of antigen avoid inflammation
The role of an adjuvant istoprolong the persistence of antigencross link the antigenincrease the size of antigenavoid inflammation
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Immunology
gate2013
antigen
+
–
0
votes
0
answers
33
GATE2013-5
Which one of the following aminoacids in proteins does $NOT$ undergo phosphorylation? Ser Thr Pro Tyr
Which one of the following aminoacids in proteins does $NOT$ undergo phosphorylation?SerThrProTyr
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Biochemistry
gate2013
aminoacids
+
–
0
votes
0
answers
34
GATE2013-4
The first humanized monoclonal antibody approved for the treatment of breast canceris Rituximab Cetuximab Bevacizumab Herceptin
The first humanized monoclonal antibody approved for the treatment of breast cancerisRituximabCetuximabBevacizumabHerceptin
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Immunology
gate2013
antibody-structure-and-function
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–
0
votes
0
answers
35
GATE2013-3
Protein A, which has strong affinity to $F_C$ region of immunoglobulin, is extracted from $\text{Saccharomyces cerevisiae}$ $\text{Staphylococcus aureus}$ $\text{Streptococcus pyogenes}$ $\text{Streptococcus sanguis}$
Protein A, which has strong affinity to $F_C$ region of immunoglobulin, is extracted from$\text{Saccharomyces cerevisiae}$$\text{Staphylococcus aureus}$$\text{Streptococc...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Immunology
gate2013
+
–
0
votes
0
answers
36
GATE2013-2
Which one of the following modifications is common toboth protein and DNA? SUMOylation Nitrosylation Methylation Ubiquitination
Which one of the following modifications is common toboth protein and DNA?SUMOylationNitrosylationMethylationUbiquitination
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Biochemistry
gate2013
+
–
0
votes
0
answers
37
GATE2013-1
Under alkaline conditions, DNA is more stable than RNA because RNA forms secondary structures RNA is a single stranded molecule RNA has uracil in place of thymidine RNA is susceptible to hydrolysis
Under alkaline conditions, DNA is more stable than RNA becauseRNA forms secondary structuresRNA is a single stranded moleculeRNA has uracil in place of thymidineRNA is su...
Milicevic3306
7.9k
points
Milicevic3306
asked
Mar 25, 2018
Molecular Biology and Genetics:
gate2013
dna-rna
+
–
0
votes
0
answers
38
GATE2018-55
A rod shaped bacterium has a length of $2 \: \mu m$, diameter of $1 \mu m$ and density the same as that of water. If proteins constitute $15 \%$ of the cell mass and the average protein has a mass of $50$ kDa, the number of proteins in the cell is __________ ($1$ Da $= 1.6 \times 10^{-24}$g)
A rod shaped bacterium has a length of $2 \: \mu m$, diameter of $1 \mu m$ and density the same as that of water. If proteins constitute $15 \%$ of the cell mass and the ...
gatecse
1.4k
points
gatecse
asked
Feb 20, 2018
Biochemistry
gate2018
biochemistry
numerical-answers
+
–
0
votes
0
answers
39
GATE2018-53
Consider a simple uni-substrate enzyme that follows Michaelis-Menten kinetics. When the enzyme catalyzed reaction was carried out in the presence of $10$ nM concentration of an inhibitor, there was no change in the maximal velocity. However. the slope of the Lineweaver-Burk plot increased $3$-fold. The dissociation constant for the enzyme-inhibitor complex (in nM) is ____________
Consider a simple uni-substrate enzyme that follows Michaelis-Menten kinetics. When the enzyme catalyzed reaction was carried out in the presence of $10$ nM concentration...
gatecse
1.4k
points
gatecse
asked
Feb 20, 2018
Biochemistry
gate2018
biochemistry
numerical-answers
kinetics
+
–
0
votes
0
answers
40
GATE2018-52
First order deactivation rate constants for soluble and immobilized amyloglucosidase enzyme are $0.03 \text{ min}^{-1}$ and $0.005 \text{ min}^{-1}$, respectively. The ratio of half-life of the immobilized enzyme to that of the soluble enzyme is (rounded off to the nearest integer) ___________
First order deactivation rate constants for soluble and immobilized amyloglucosidase enzyme are $0.03 \text{ min}^{-1}$ and $0.005 \text{ min}^{-1}$, respectively. The ra...
gatecse
1.4k
points
gatecse
asked
Feb 20, 2018
Biochemistry
gate2018
biochemistry
numerical-answers
enzyme
kinetics
+
–
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