Question1:-Morphologically indistinguishable but genetically different populations
are called
A:-A sexual
species
B:-Cryptic
species
C:-Cohesion
species
D:-Biological species
Correct
Answer:- Option-B
Question2:-Who proposed the five kingdom classification?
A:-Robert H.
Whittaker
B:-Ernst
Haeckel
C:-Aristotle
D:-Carl Woese
Correct
Answer:- Option-A
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Question3:-An ogive is a graphic presentation of the _______
distribution for a given
set of data.
A:-Frequency
B:-Relative
frequency
C:-Percentage
frequency
D:-Cumulative
frequency
Correct
Answer:- Option-D
Question4:-Following measure of dispersion is not based on
all the observation of a
series.
(i) Standard
deviation
(ii) Quartile deviation
(iii) Mean deviation
(iv) Range
A:-(i) and
(iii)
B:-(ii) and
(iv)
C:-All the
above
D:-(ii)
Correct
Answer:- Option-B
Question5:-Which among the following products from Kerala
have registered under
Geographical indications recently?
(i) Kanthalloor Vattavada Veluthulli
(ii) Kodungallur Pottuvellari
(iii) Onattukara Ellu
(iv) Attappady Thuvara
A:-(i) and
(ii) only
B:-(i) only
C:-(i) and
(iii) only
D:-All the
above
Correct
Answer:- Option-D
Question6:-_____ is a semi quantitative technique for
detecting radioactively
labelled molecules in cells, tissues or electrophoretic
gels.
A:-Immunoblotting
B:-Mass
spectrometry
C:-Autoradiography
D:-SDS-PAGE
Correct
Answer:- Option-C
Question7:-Following radioisotopes are commonly used in
biological research. Their
half-life is mentioned in the bracket.
Which among them have the highest specific activity?
A:-Phosphorus-32 (14.3 days)
B:-Iodine-125
(60.4 days)
C:-Sulfur-35
(87.5 days)
D:-Tritium
(12.4 years)
Correct
Answer:- Option-A
Question8:-Which microscopy will be used to view the details
of live, unstained
cells?
(i) Scanning Electron Microscope (SEM)
(ii) Transmission Electron Microscope (TEM)
(iii) Phase Contrast Microscope
(iv) Differential Interference Contrast (DIC) microscope
A:-(iii) only
B:-(i) and
(ii) only
C:-(iii) and
(iv) only
D:-(iv) only
Correct
Answer:- Option-C
Question9:-Which of the following statements is not true
about Agarose gel
electrophoresis.
(i) It uses electric current to separate DNA molecules.
(ii) Under electric field, DNA migrates from positive
electrode to negative electrode.
(iii) If separates DNA by size.
(iv) Ethidium bromide is usually used to visualize DNA in
gels.
A:-(iv) only
B:-(ii) only
C:-all above
D:-(iii) only
Correct
Answer:- Option-B
Question10:-Visualization at the nanoscale can be achieved
by
(i) Scanning Tunneling Microscopy
(ii) Atomic Force Microscopy
(iii) Nomarsky microscopy
(iv) All the above
A:-(iv)
B:-(ii) and
(iii)
C:-(ii)
D:-(i) and
(ii)
Correct Answer:- Option-D
Question11:-Monomers of Lactose are
A:-Two glucose
molecules
B:-One glucose
and one fructose
C:-One
galactose and one glucose
D:-Two
galactose molecules
Correct
Answer:- Option-C
Question12:-Which are the three aminoacids with aromatic
side chains?
A:-Valine,
Leucine, Isoleucine
B:-Lysine,
Arginine, Histidine
C:-Phynylalanine, Threonine, Tryphtophan
D:-Phynylalanine, Tyrosine, Tryphtophan
Correct Answer:-
Option-D
Question13:-Select the incorrect statement about -helix from
the following
A:-It was
discovered by Linus Pauling in 1951
B:- -helix is
left handed
C:-
-helix has 3.6 residues per turn
D:- -helix
have an average length of ~12 residues
Correct
Answer:- Option-B
Question14:-______ lipids are involved in the production of
pain and fever.
A:-Prostaglandins
B:-Cerebrosides
C:-Gangliosides
D:-Sphingomyelins
Correct
Answer:- Option-A
Question15:-The Watson-Crick model of DNA is based on X-ray
diffraction data
provided by
A:-James
Watson and Francis Crick
B:-Rosalind
Franklin and Maurice Wilkins
C:-Oswald
Avery, Colin MacLeod and Maclyn McCarty
D:-Erwin
Chargaff
Correct
Answer:- Option-B
Question16:-Select the correct statement from the following.
(i) In competitive inhibition, inhibiters bind to the active
site of the enzyme.
(ii) Competitive inhibition can be overcome by a
sufficiently high concentration of
substrate.
(iii) Noncompetitive inhibition cannot be overcome by
increasing the substrate
concentration.
A:-(i) and
(ii)
B:-(ii) and
(iii)
C:-(iii) only
D:-(i, ii and
iii)
Correct
Answer:- Option-D
Question17:-Flowering can be induced in some plants by a
cold treatment given to
a hydrated seed or to a growing plant. The process is known
as
A:-Photoperiodism
B:-Temperature
compensation
C:-Vernalization
D:-Floral
evocation
Correct
Answer:- Option-C
Question18:-The synthesis of sugars through the reversal of
glycolysis is called
A:-Gluconeogenesis
B:-Glycogenesis
C:-Glycogenolysis
D:-Pentose
phosphate pathway
Correct
Answer:- Option-A
Question19:-Carrier proteins that transport a single type of
molecule down its
concentration gradient via facilitated diffusion are called
A:-Antiporters
B:-Symporters
C:-Uniporters
D:-Proton
pumps
Correct
Answer:- Option-C
Question20:-Nucleosomes of eukaryotes contain _______ base
pairs of DNA.
A:-147
B:-140
C:-90
D:-10-90
Correct
Answer:- Option-A
Question21:-Turner syndrome is due to
A:-Trisomy
B:-Monosomy
C:-Polyploidy
D:-Duplication
Correct
Answer:- Option-B
Question22:-CDK1/Cdc25C functions in
A:-The spindle
assembly check point
B:-The spindle
position check point
C:-The DNA
damage checkpoint
D:-The intra
S-phase checkpoint
Correct
Answer:- Option-D
Question23:-Which among the following is not a promoter
elements in eukaryotes
A:-TATA box
B:-Initiators
(Inr)
C:-CpG islands
D:-Pribnow box
Correct
Answer:- Option-D
Question24:-______ allows a tRNA to recognize more than one
mRNA codon.
A:-Watson and
Crick base pairing
B:-Wobble
pairing
C:-D loop
D:-TψCG loop
Correct
Answer:- Option-B
Question25:-Which of the following combination is correct
about ribosome
composition?
(i) 50S(23S+5S), 30S(16S)=70S
(ii) 50S(23S+5.8S), 30S(16S)=70S
(iii) 60S(28S+5.8S+5S)+40S(18S)=80S
(iv) 60S(28S+5.8S+5S)+40S(16S)=80S
A:-(i)
B:-(iii)
C:-(i) and
(iii)
D:-(ii) and
(iv)
Correct
Answer:- Option-C
Question26:-Inactive but stable component of the genome
derived by mutation of
an ancestral active gene is called
A:-Gene family
B:-Psuedogene
C:-Multigene
D:-Transposons
Correct Answer:-
Option-B
Question27:-The strength of relationship or association
between a dependent and
an independent variables for a given population can be
determined by
A:-Regression
B:-Correlation
C:-Standard
deviation
D:- Goodness
of fit
Correct
Answer:- Option-A
Question28:-Poisson distribution is associated with
A:-Probability
of success
B:-Probability
of failure
C:-Probability
of occurrence of rare events
D:-All the
above
Correct
Answer:- Option-C
Question29:-In hypothesis testing, a Type 1 error arises
when
A:-Null
hypothesis is rejected when it is true
B:-Null
hypothesis is accepted when it is false
C:-Null
hypothesis is accepted when it is true
D:-Null
hypothesis is rejected when it is false
Correct
Answer:- Option-A
Question30:-Which of the following is not a cross-cutting
issue permeating through
the Biosafety protocol 2000?
A:-Environment
B:-Human
Health
C:-Precaution
D:- Trade
Correct
Answer:- Option-A
Question31:-Following is a list of some enzymes used in
recombinant DNA
technology with their activity. Select the incorrect
combination of enzyme and its
activity.
A:-T7 DNA
polymerase : DNA polymerase and 3' exonuclease activities
B:-Poly(A)
polymerase : Adds AMP from ATP to the 3' end of mRNA
C:-S1 nuclease
: Degrades double-standard RNA
D:-Mung bean
nuclease : Single-stranded DNA and RNA endonuclease
Correct
Answer:- Option-C
Question32:-Few terms have been explained below. Select the
correctly explained
ones.
(i) Multiple factor hypothesis explains variation in complex
phenotypes such as
height, weight,
and disease
susceptibility.
(ii) Broad-sense heritability is the proportion of the total
phenotypic variance that is
due to
genetic factors.
(iii) Fitness is the number of offspring left by an
individual, often compared with the
average of
the population.
(iv) QTL are associated with a particular phenotypic trait,
which varies in degree
and which can
be attributed to
polygenic effects.
A:-Only (i)
and (iv) are correct
B:-Only (iii)
and (iv) are correct
C:-Only (i)
and (iii) are correct
D:-All are
correct
Correct
Answer:- Option-D
Question33:-Though fusion tags have been very helpful in the
detection and
isolation of target recombinant proteins, they may interfere
with the biological
function of the target protein eventually. Hence, they are
generally removed by
cleaving a short linker amino acid sequence joining the
fusion tag with the target
protein using appropriate protease enzymes. Which of the
following is a commonly
used protease for performing the above cleavage?
A:-Trypsin
B:-Tobacco
Etch Virus Protease
C:-Alpha
peptidase
D:-None of the
above
Correct
Answer:- Option-B
Question34:-The ectopic expression of some transcription
factors can increase the
efficiency of somatic embryogenesis (SE) induction and lead
to the formation of
somatic embryos without adding hormones. Mutations in these
genes have a
negative impact on the efficiency of SE induction. Which of
the following is not such
a transcription factor?
A:-LEC
B:-BBM
C:-NOR
D:-AGL 15
Correct
Answer:- Option-C
Question35:-When was the Protein Data Bank established and
what was the
number of biological macromolecular structures held in the
database at that time?
A:-1971 with
11 structures
B:-1991 with
11 structures
C:-1991 with 7
structures
D:-1971 with 7
structures
Correct
Answer:- Option-D
Question36:-Osteogenesis imperfecta (OI) is a human bone
disease. The majority of
people with this disease have a dominant mutation in one of
the two genes that
produce type 1 collagen, COL1A1 or COL1A2. However, this
disease doesn't affect
everyone who has COLIA1 and COLIA2 mutations in the same
way. In fact, some
people can carry the mutation but have no symptoms. Which of
the following terms
explains the above phenomenon?
A:-Variable
Expressivity
B:-Incomplete
penetrance
C:-Codominance
D:-None of the
above
Correct
Answer:- Option-B
Question37:-Following are statements regarding bacteriophage
lambda
(i) pR transcript encodes N, a transcriptional
anti-terminator required for expression
of most
early lambda
genes, and CIII, a positive regulator of lysogeny.
(ii) pL transcript encodes for Cro, CII, O, P, and Q
(iii) CII is the major lysogenic decision determinant,
promoting the expression of CI
Which one of the options below represents the combination of
all correct
stateemnts?
A:-Only(iii)
is correct
B:-Only (ii)
is correct
C:-Both (ii)
and (iii) are correct
D:-Both (i)
and (ii) are correct
Correct
Answer:- Option-A
Question38:-Which of the following is an incorrect
statement?
A:-H2AX is a
variant of the histone protein H2 located throughout the
chromatin region
B:-Macro H2C
is a variant of the histone protein H2 located in the inactive X
chromosome region
C:-H2Az is a
variant of the histone protein H2 located in the euchromatin
region
D:-CENP-A is a
variant of the histone protein H3 located in the centromere
region
Correct
Answer:- Option-B
Question39:-Which of the following is an incorrect
combination of a viral disease
and the Order of the causative virus?
(i) AIDS : Orterirales
(ii) Measles : Mononegativrales
(iii) SARS : Norzivirales
(iv) Rabies : Mononegavirales
A:-Both (i)
and (ii)
B:-Both (ii)
and (iv)
C:-Only (ii)
D:-Only (iii)
Correct
Answer:- Option-D
Question40:-The mode of action of certain antibiotics is
given below
(i) Ampicillin : Inhibition of cell wall synthesis by
interference with peptidoglycan
cross-linking
(ii) Chloramphenicol : Inhibition of translation by blocking
peptidyl transferase on
the 50S
ribosomal submit
Select the right option
A:-Both (i)
and (ii) are correct
B:-Both (i)
and (ii) are incorrect
C:-Only (i) is
correct
D:-Only (ii)
is correct
Correct
Answer:- Option-A
Question41:-Which of the following media is selective and
differential in its
function?
(i) Eosin methylene blue agar
(ii) MacConkey Agar
(iii) Mannitol Salt Agar
A:-Only (i)
and (ii)
B:-Only (ii)
and (iii)
C:-Only (iii)
D:-All of the
above
Correct
Answer:- Option-D
Question42:-Given below are hyperaccumulator plants with the
elements that they
accumulate. Find out the correct combination.
(i) Nickel:Phyllanthus
(ii) Zinc : Arabidopsis
(iii) Arsenic : Pteris
(iv) Copper : Commelina
A:-Both (i)
and (ii) are correct
B:-All are
correct
C:-Both (iii)
and (iv) are correct
D:-Only (iii)
is correct
Correct
Answer:- Option-B
Question43:-Which among the following does not belong to
schedule I as per the
Wildlife Protection Act in India?
A:-Gangetic
Dolphin
B:-Indian
Porcupine
C:-Musk Deer
D:-Swamp Deer
Correct
Answer:- Option-B
Question44:-Which of the following statements is correct
about ice cores?
(i) The U.S. National Ice Core Laboratory, in Lakewood,
Colorado, is the U.S. storage
facility,
which archives ice
cores from all over the world
(ii) The ice cores contain annual layers that can be counted
to known the age of the
ice, just
like rings inside
a tree.
(iii) In India, ice core facility is available at Centre for
Climate Research, IITM, Pune.
(iv) Ice cores tell about past climate, including the past
atmospheric temperatures
and
greenhouse
gases.
A:-All are
correct
B:-Only (i)
and (iv) are correct
C:-Only (i),
(ii) and (iv) are correct
D:-Only (ii)
and (iv) are correct
Correct
Answer:- Option-C
Question45:-The natural products obtained from plants belong
to different classes
and almost each one shows antiinfective properties. Among
the various classes, the
ones with the lowest proportion of antiinfective metabolites
are
A:-Sugars and
Glycosylated compounds
B:-Phenolic compounds like xanthones and
coumarins
C:-Peptides
D:-Anthracenes
Correct
Answer:- Option-A
Question46:-Choose the incorrect statement from the
following
A:-Two
components necessary for centromere function are satellite
sequences and CENP-B boxes
B:-The term
telomere was introduced by Hermann J Muller
C:-T-loops are
special structures seen in giant chromosomes
D:-The
production of two functional centromeres is a key step in the transition
from metaphase to anaphase
Correct
Answer:- Option-C
Question47:-Identify the incorrect statement.
(i) Density gradient centrifugation can be used to identify
all repetitive DNA
sequences
(ii) The most highly repeated sequences in eukaryotic
genomes do not encode
Proteins or
RNA
(iii) The most prevalent of the repeated DNA sequences are
transposable genetic
elements, or
inactive
sequences derived from transposable elements.
(iv) An abundance of dispersed repetitive DNA in the genome
makes chromosomes
walking
easier.
A:-Only (i)
B:-Both (i)
and (iv)
C:-Only (ii)
D:-Both (ii)
and (iv)
Correct
Answer:- Option-B
Question48:-Who among the following has received Nobel Prize
for a direct
contribution to the field of Genetics?
(i) Har Gobind Khurana
(ii) Arthur Kornberg
(iii) Hamilton O Smith
(iv) Beadle and Tatum
A:-All of them
B:-Only (i)
and (ii)
C:-Only (i), (ii) and (iv)
D:-Only (iii)
and (iv)
Correct
Answer:- Option-C
Question49:-Read the following statements in the context of
epigenetics.
(i) When the DNA of a cell is replicated, histones
associated with the DNA as part of
the
nucleosomes are
distributed randomly to the daughter cells along with the DNA
molecules.
(ii) Histone code postulates that the state and activity of
a particular region of
chromatin
depend on the
specific modifications, or combinations of modifications, to the
histone tails
in that region.
(iii) The most notable histone modifications include
acetylation, methylation and
phosphorylation.
(iv) Histone modifications alter the manner in which the
histone tails of neighboring
nucleosomes
interact with one another
Which among the above is a correct statement?
A:-Only (ii),
(iii) and (iv)
B:-Only (i),
(ii) and (iii)
C:-Only (iii)
and (iv)
D:-All are
correct
Correct
Answer:- Option-D
Question50:-The major facilities supported by the
Biotechnology Information
System Network (BTISnet) of the Department of Biotechnology,
India include
A:-Indian
Biological Data Centre (IBDC)
B:-Indo-Japan
DAICENTER Programme
C:-MANAV :
Human Atlas Initiative
D:-All of the
above
Correct
Answer:- Option-D
Question51:-Erythropoietin is secreted by
A:-Kidney
B:-Bone marrow
C:-Liver
D:-Lungs
Correct
Answer:- Option-A
Question52:-Which of the following primary chordate
characters are not lost even
after retrogressive metamorphosis in Ascidia
A:-Notochord
B:-Pharyngeal
gill slits
C:-Dorsal
tubular nerve cord
D:-Both (1)
and (2)
Correct
Answer:- Option-B
Question53:-Which of the following is false regarding B
cells?
A:-Originate
in bone marrow
B:-Differentiate in lymphoid tissue
C:-Surface
immunoglobulin absent
D:-Mediate
humoral immunity
Correct
Answer:- Option-C
Question54:-Vaccination done for ______ is a toxoid
preparation.
A:-Diphtheria
B:-Polio
C:-Rubella
D:-Varicella
Correct
Answer:- Option-A
Question55:-According to Law of Bergonie and Tribondeau, the
cells in their
descending order of sensitivity to radiation are
A:-Nerve
cells, Muscle cells, Epithelial cells, Haematopoietic cells
B:-Muscle cells,
Nerve cells, Haematopoietic cells, Epithelial cells
C:-Haematopoietic cells , Epithelial cells, Muscle cells, Nerve cells
D:-Epithelial
cells, Muscle cells, Nerve cells, Haematopoietic cells
Correct
Answer:- Option-C
Question56:-Which of the following matches correctly?
(i) Devonian -
Mammals
(ii) Pennsylvanian -
Fishes
(iii) Jurassic
- Reptiles
(iv) Tertiary
- Amphibians
A:-(i) and
(ii)
B:-(ii) and
(iii)
C:-(iii) and
(iv)
D:-(iii) only
Correct
Answer:- Option-B
Question57:-The fetal hormones which works as uterine
stimulants to enable
parturition are
A:-Oxytocin
B:-Cortisol
C:-Prostaglandin
D:-Both (1)
and (2)
Correct
Answer:- Option-D
Question58:-Which statement regarding rigor mortis is
correct?
A:-ATP can's
mediate separation of cross bridges from actin filaments
B:-Muscles can
no longer relax
C:-Muscles
contract and become rigid even without action potential
D:-All of
these
Correct
Answer:- Option-C
Question59:-Which among the following is an immunologically
privileged site?
A:-Eye
B:-Testis
C:-Central
nervous system
D:-All of
these
Correct
Answer:- Option-D
Question60:-Position emission tomography is based on
A:-Coulomb
scattering
B:-Pair
production
C:-Pair
annihilation
D:-Compton
effect
Correct
Answer:- Option-C
Question61:-Which of the following are wrong pairs?
(i) Autoimmune haemolytic anaemia : Rh antigen
(ii) Graves disease : thyroid stimulating hormone receptor
(iii) Myasthenia gravis : Adrenaline receptor
(iv) Systemic lupus erythematosus : Rh antigen
A:-(i) and
(ii)
B:-(ii) and
(iii)
C:-(iii) and
(iv)
D:-(i) and
(iv)
Correct
Answer:- Option-C
Question62:-Which of the following is wrong with respect to
radionuclide used in
nuclear medicine?
(i) must emit gamma ray with the right energy to allow
detection
(ii) mush have a short half-life
(iii) must be cheap
(iv) must be readily available
A:-(ii) only
B:-(i) only
C:-all of
these
D:-none of
these
Correct
Answer:- Option-D
Question63:-Directional selection
(i) occurs due to the change in the environmental in
particular direction
(ii) favors the phenotype which is non-average or extreme
(iii) eliminates normal or average individuals
(iv) keeps a population genetically constant
A:-(i), (ii)
and (iii) are correct
B:-(i), (ii)
and (iv) are correct
C:-only (iv)
is correct
D:-(ii), (iii)
and (iv) are correct
Correct
Answer:- Option-A
Question64:-Oxytocin and vasopressin are structurally and
functionally similar
nonapeptides secreted by the posterior pituitary. The
difference between the two is
that
A:-Phenyl
alanine and Arginine of Vasopressin are substituted by Isoleucine
and leucine in Oxytocin
B:-Phenyl
alanine and Arginine of Oxytocin are substituted by Isoleucine and
leucine in Vasopressin
C:-Isoleucine
and leucine of Vasopressin are substituted by cysteine and
tyrosine in Oxytocin
D:-Cysteine
and tyrosine of Vasopressin are substituted by Isoleucine and
leucine in Oxytocin
Correct Answer:-
Option-A
Question65:-Contribution of external factors in their
descending order, in
compressing the lymph vessel adn thereby causing pumping of
lymph, are
A:-Contraction
of surrounding skeletal muscles, movement of the part of the
body, pulsation of arteries adjacent to the lymphatics,
compression of the tissues
by objects outside the body
B:-Compression
of the tissues by objects outside the body, pulsation of
arteries adjacent to the lymphatics, movement of the parts
of the body, contraction
of surrounding skeletal muscles
C:-Movement of
the parts of the body, contraction of surrounding skeletal
muscles, pulsation of arteries adjacent to the lymphatics,
movement of the parts of
the body, compression of the tissues by objects outside the
body
D:-Movement of
the parts of the body, pulsation of arteries ajacent to the
lymphatics, contraction of surounding skeletal muscles,
pulsation of arteries ajacent
to the lymphatics
Correct
Answer:- Option-A
Question66:-State bird of Kerala is
A:-Buceros
bicornis
B:-Malabar
banded peacock
C:-Paradise
flycatcher
D:-Pavo
cristatus
Correct
Answer:- Option-A
Question67:-Physiology of which sensation involves a
hyperpolarizaton rather than
depolarization?
A:-Taste
B:-Smell
C:-Hearing
D:-Vision
Correct
Answer:- Option-D
Question68:-Which of the complement activation pathways are
antibody
independent?
A:-Classical
pathway
B:-Lectin
pathway
C:-Properdin
pathway
D:-Both (2)
and (3)
Correct
Answer:- Option-D
Question69:-Which one of the following denote the correct
order of the divisions of
the geologic time scale?
A:-Era, Epoch,
Eon, Period, Age
B:-Eon, Era,
Period, Epoch, Age
C:-Period,
Age, Era, Epoch, Eon
D:-Epoch, Era,
Period, Age, Eon
Correct
Answer:- Option-B
Question70:-Which of the following is true with respect to
passive immunity?
A:-Exposure to
antigen occurs
B:-Immune
system gets activated
C:-Immunity
develops immediately
D:-Immunological
memory develops
Correct
Answer:- Option-C
Question71:-Why are large amounts of solutes filtered and
then reabsorbed by the
kidneys?
A:-Allows
kidneys to rapidly remove waste products from the body
B:-Allows all
the body fluids to be filtered and processed by the kidney many
times each day
C:-Both (a)
and (b)
D:-None of the
above
Correct
Answer:- Option-C
Question72:-Antibiotic aminopterin added in the growth
medium for production of
monoclonal antibodies, inhibits ________ synthesis.
A:-Nucleic
acid
B:-Protein
C:-Lipid
D:-Carbohydrate
Correct
Answer:- Option-A
Question73:-In chemical control of respiration, oxygen has a
significant direct effect
on
A:-Respiratory
center of brain
B:-Peripheral
chemorceptors of carotid bodies
C:-Peripheral
chemoreceptors of aortic bodies
D:-Both (2)
and (c)
Correct
Answer:- Option-D
Question74:-Zymogen activation by autocatalysis is shown by
A:-Chymotrypsin
B:-Trypsin
C:-Carboxypeptidase
D:-Elastase
Correct
Answer:- Option-B
Question75:-Damage to the substantia nigra of basal ganglia
results in
A:-Alzheimers
B:-Schizophrenia
C:-Parkinsons
D:-Both (1)
and (3)
Correct
Answer:- Option-C
Question76:-Which antibody complies the following
characteristics : enters
secretion,crosses placenta, binds to macrophages/neutrophils
A:-IgM
B:-IgG
C:-IgE
D:-All of
these
Correct
Answer:- Option-B
Question77:-Glucose uptake from the lumen of small
intestinal is an example of
A:-Simple
diffusion
B:-Primary
active transport
C:-Secondary
active transport
D:-Filtration
Correct
Answer:- Option-C
Question78:-Respiratory distress syndrome in premature
babies can be caused by
A:-Increased
surfactant production and larger radii of alveoli
B:-Increased
surfactant production and smaller radii of alveoli
C:-Decreased
surfactant production and larger radii of alveoli
D:-Decreased
surfactant production and smaller radii of alveoli
Correct
Answer:- Option-D
Question79:-Overall ability of antibodies to interact with
antigen is called
A:-Cross
reactivity
B:-Avidity
C:-Affinity
D:-Specificity
Correct
Answer:- Option-B
Question80:-Which of the following combinations are correct?
(i) Widal's test-Typhoid-Agglutination test
(ii) Weil-Felix test-Rickettsial infections-Precipitation
test
(iii) Wasserman test-Sypthilis-Complement fixation test
A:-(i) and
(ii)
B:-(i) and
(iii)
C:-(ii) and
(iii)
D:-All of
these
Correct
Answer:- Option-B
Question81:-Which of the following is not a type of tissue
culture?
A:-Meristem
culture
B:-Embryo
culture
C:-Leaf
culture
D:-Bacterial
culture
Correct
Answer:- Option-D
Question82:-Which of the following is an example of a
tissue-engineered product
that has been approved for clinical use?
A:-Artificial
heart valve
B:-Artificial
kidney
C:-Artificial
pancreas
D:-All of the
above
Correct
Answer:- Option-A
Question83:-Which of the following is a commonly used
cryoprotectant in embryo
cryopreservation?
A:-Ethanol
B:-Dimethyl
sulfoxide (DMSO)
C:-Formaldehyde
D:-Hydrogen
peroxide
Correct
Answer:- Option-B
Question84:-Which of the following is not a characteristic
of stem cells?
A:-Self-renewal
B:-Differentiation
C:-Apoptosis
D:-Proliferation
Correct
Answer:- Option-C
Question85:-What are induced pluripotent stem cells (iPSCs)
A:-Stem cells
derived from adult tissues that have been reprogrammed to a
pluripotent state
B:-Stem cells
derived from umbilical cord blood
C:-Stem cells
derived from embryonic tissues
D:-Stem cells
derived from bond marrow
Correct
Answer:- Option-A
Question86:-What is the target antigen for trastuzumab
(Herceptin)?
A:-CD20
(Cluster of differentiate 20)
B:-HER2 (Human
Epidermal Growth factor receptor 2Q
C:-VEGF
(Vascular Endotherlial Growth factor)
D:-PD-1
(Programmed Cell Death Protein 1)
Correct
Answer:- Option-B
Question87:-Which of the following amino acids is nonpolar?
A:-Asparagine
B:-Glutamine
C:-Leucine
D:-Lysine
Correct
Answer:- Option-C
Question88:-Which of the following is an example of a
probiotic strain?
A:-Lactobacillus acidophilus
B:-E.coli
O157:H7
C:-Salmonella typhi
D:-Streptococcus pyogenes
Correct
Answer:- Option-A
Question89:-Which of the following is NOT involved in cell
determination?
A:-Gene
expression
B:-Environmental cues
C:-Cell
migration
D:-Epigenetic
modifications
Correct
Answer:- Option-C
Question90:-How do morphogenetic gradients influence tissue
development?
A:-They direct
cells to differentiate into specific cell types
B:-They
control cell proliferation and survival
C:-They
regulate cell migration and adhesion
D:-All of the
above
Correct
Answer:- Option-D
Question91:-Which of the following is the correct order of
events in oogenesis?
A:-Meiosis II,
ovulation, meiosis I, fertilization
B:-Meiosis I,
Ovulation, Meiosis II, fertilization
C:-Ovulation,
Meiosis I, Meiosis II, fertilization
D:-Ovulation,
Meiosis II, Meiosis I, fertilization
Correct Answer:-
Option-C
Question92:-Which of the following is a result of
capacitation?
A:-Acrosome
reaction
B:-Sperm
motility
C:-Sperm
maturation
D:-Sperm
differentiation
Correct
Answer:- Option-A
Question93:-What is the signification of meroblastic
cleavage?
A:-It allows
for the formation of a blastula
B:-It a allows
for the development of large eggs with lots of yolk
C:-It allows
for the formation of specialized cells and tissues
D:-It sets the
stage for gastrulation and organogenesis
Correct
Answer:- Option-B
Question94:-Which of the following is true about
teratogenesis?
A:-It is
always caused by exposure to environmental toxins
B:-It can
occur at any stage of development
C:-It is
always reversible
D:-It only
affects humans
Correct
Answer:- Option-B
Question95:-Which of the following is a protein complex
involved in dosage
compensation in mammals?
A:-Sry
B:-Hox
C:-Xist
D:-SOX9
Correct
Answer:- Option-C
Question96:-Which of the following is true about exons and
introns?
A:-Exons are
transcribed into RNA and introns are not
B:-Introns are
transcribed into RNA and exons are not
C:-Both exons
and introns are transcribed into RNA
D:-Exons and
introns are not involved in transcription
Correct
Answer:- Option-C
Question97:-What is preimplantation genetic testing?
A:-A technique
used to determine the sex of the embryo before implantation
B:-A technique
used to screen embryos for genetic disorders
C:-A technique
used to select the most viable embryo for implantation
D:-A technique
used to modify the genes of the embryo
Correct
Answer:- Option-B
Question98:-How is the absence of the H antigen related to
the presence of the A
and B antigens?
A:-The A and B
antigens are modified forms of the H antigen
B:-The A and B antigens are completely
unrelated to the H antigen
C:-The A and B
antigens are formed independently of the H antigen
D:-The A and B
antigens are produced in the absence of the H antigen
Correct
Answer:- Option-A
Question99:-Which of the following is a recently discovered
species of primates?
A:-Gorilla
beringei
B:-Pan
troglodytes
C:-Pongo
tapanuliensis
D:-Homo
sapiens
Correct
Answer:- Option-C
Question100:-Scientists discovered a new organ in the human
body that had gone
unnoticed till recently . What is the name of this organ?
A:-Mesentery
B:-Interstitium
C:-Submucosa
D:-Reticular
organ
Correct
Answer:- Option-A