| Post Name | SCIENTIFIC ASSISTANT (ANATOMY) - MEDICAL EDUCATION |
|---|---|
| Question Paper Code | 137/2023 |
| Category Code | 667/2022 |
| Date of Test | 2 August 2023 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Who coined the term âclineâ to refer to a gradient of a phenotypic or genetic
character within a single species ?
Answer
D. Julian Huxley
2
In Zoological nomenclature, a hapantotype is
Answer
A. One or more preparations consisting of directly related individuals
representing distinct stages in the life cycle, which together form the
name-bearing type in an extant species of protistan
3
In dNA barcoding, the barcode gap refers to
Answer
D. The discrepancy in sequence similarity between closely related species
and within a species
4
Australopithecus boisei d. Kenya
Answer
A. 1 â a, 2 â b, 3 â c, 4 â d
5
Which molluscan family is commonly referred to as tusk shells ?
Answer
B. Scaphopoda
6
Appearance of first flowering plants
match the above with the geological time periods and select the correct
combination.
Answer
C. 1 â Ordovician, 2 âTertiary, 3 âTriassic, 4 â Jurassic, 5 â Carboniferous,
6 â Cretaceous
7
Paedomorphosis, the displacement of ancestral larval or juvenile features
into a descendant adult, can be produced by
Answer
D. All of the above
8
In the table given below, Column | shows 6 mammalian Orders and Column Il
shows one representative species from each Order. Select the correct
combination.
ower Cngulata fa Siows
Order Soricomorpha lb. Armadillo
Order Perissodactyla Hippopotamus
over Adaciia
Answer
B. 1-b,2-a,3-d,4-c,5-e,6-f
9
Which of the following is not an âarchosaurâ ?
Answer
A. Snake
10
Which of the following is referred to as simple associative learning ?
Answer
B. Operant Conditioning
11
Some important events in the history of life on earth are listed below
1. Appearance of first vertebrates
2. Dominance of mammals and birds
3. Development of coniferous plants
4. Appearance of first birds
5. Development of insects
6. Appearance of first flowering plants
Match the above with the geological time periods and select the correct
combination.
Answer
C. 1 -â Ordovician, 2 âTertiary, 3 -Triassic, 4 â Jurassic, 5 â Carboniferous,
6 â Cretaceous
12
Red Queen Hypothesis (RQH) of evolution was proposed by
Answer
B. leigh Van Valen
13
The genus Australopithecus, which is ancestral to Homo and modern humans,
existed in Africa during the Pliocene and Early Pleistocene. In the table given
below, Column | shows different species of Australopithecus and Column II
shows the places of fossil discovery. Select the correct combination.
Column |! Column Il
1. | Australopithecus robustus a. | Tanzania
2. | Australopithecus aethiopicus |b. | East Africa
3. | Australopithecus afarensis c. | South Africa
4. | Australopithecus boisei d. | Kenya
Answer
C. 1-c,2-d,3-a,4-b
14
Which biogeographical zone in India is characterized by a mix of dry
deciduous forests and scrublands, with diverse wildlife including tigers,
leopards and sloth bears ?
Answer
B. deccan Peninsula Biogeographical Zone
15
According to Fickâs law, the rate of diffusion across biological membranes is
inversely proportional to which of the following factors ?
Answer
A. molecular weight and membrane thickness
16
Which unit is equivalent to one radioactive disintegration per second ?
Answer
A. Curie
17
Which type of radiation is most likely to cause direct damage to nucleic
acids within cells ?
Answer
A. Alpha particles
18
Which radioactive tracer is commonly used in Positron Emission Tomography
(PET) scans to diagnose specific diseases and disorders by means of identifying
metabolic deviations ?
Answer
D. Fluorine-18
19
What type of probe is commonly used in atomic force microscopy ?
Answer
D. Cantilever
20
Which of the following aspects of NmR imaging could cause potential health
hazards ?
Answer
D. All of the above
21
Widening and distortion of the QRS complex on ECG is indicative of
Answer
C. Right bundle branch block
22
Which of the following nanoparticle antioxidants can act as a mitochondrial
protectant ?
Answer
D. Cerium oxide
23
Which of the following is true with respect to gastro intestinal contraction ?
i) Rhythm of gastro intestinal contraction is determined mainly by the slow
undulating changes in the resting membrane potential.
ii) Slow waves might result from slow undulations of the pumping activity
of Sodium Potassium pump.
iii) Slow waves by themselves cause muscle contraction in most parts of
gastro intestinal tract.
Answer
C. i and ii only
24
Which of the following are true with dNA vaccines ?
i) no risk of vaccines becoming fatal
ii) provide both humoral and cellular immunity
iii) stability of vaccines for storage and shipping
iv) limited to protein immunogens
Answer
D. All the above
25
Which of the following pairs do not match ?
Answer
D. multiple sclerosis : Rh antigen
26
The criteria for selecting a marker to measure glomerular filtration rate is
i) Should be of low molecular weight and freely filtered
ii) Shouldnât be produced by the body
iii) Shouldnât be reabsorbed by the renal tubule
iv) Should be secreted by the renal tubule
Answer
D. i, ii and iii
27
Pain of heart is most often experienced as pain of arm, back and neck. This
is attributed to
i) dermatomal principle
ii) According to convergence-projection theory
iii) Prolonged visceral stimulus facilitates somatic nociceptors, which in turn
stimulate secondary neurons and brain is unable to determine whether
the pain comes from heart or from area of referral.
Answer
C. All the above
28
Aminopterin used during the production of hybridoma cells
Answer
A. Blocks de novo synthesis of dNA
29
Which of the following is a mismatching pair ?
i) lgG : can cross placenta
ii) IgE : binds to mast cells
iii) IgA : binds to macrophages
Answer
C. iii only
30
Which of the following is true about vagus nerve ?
Answer
B. Tenth cranial nerve, mixed in nature, arise from hindbrain
31
When the surface tension of the alveoli in the lungs of a baby is doubled,
the pressure in the alveoli
Answer
A. is doubled
32
Which of the following is true for a histogram ?
i) it is a two dimensional graph
ii) total area of rectangles represent the frequency
iii) It is used to represent discrete frequency distribution
Answer
A. i and ii
33
myasthenia gravis can be ameliorated for several hours by administering
neostigmine, where it act as a
Answer
C. Anti-choline esterase activity
34
lengths (mean Âą standard deviation), of two species of fish A and B is given
below.
Species A = 67 Âą 2.5; Species B = 64 Âą 2.4
length of which species is more variable ?
Answer
C. length of species B is more variable than that of species A
35
Which of the following hormones are stored in vesicles until needed ?
Answer
D. insulin, glucagon, prolactin
36
The titer of which of the following hormones are increasing to enable
parturition ?
Answer
B. estrogen, cortisol, prostaglandin
37
The nth root of the product of the ânâ items in an ungrouped data is called
Answer
B. geometric mean
38
An intellectual property protection granted under Indian law to the creators
of original work is known as
Answer
C. copyright
39
What of the following are common about hyaluronic acid, heparin and
keratan sulphate ?
i) unique to animals and bacteria
ii) all are glycosaminoglycans
iii) they are found covalently attached to protein
Answer
A. i and ii
40
In samples of DNA isolated from two unidentified species of bacteria P and Q
thymine makes up 32% and 17% respectively. Which of the following statement
is correct ?
Answer
B. Q is more thermophilic than P
41
Which of the following are the software for checking plagiarism ?
i) turnitin
ii) urkund
iii) Quillbot
Answer
B. i and ii
42
The number of possible secondary conformation of a protein is limited by
i) Restriction of rotation about alpha carbonyl carbon and alpha amide
nitrogen
ii) Restriction of rotation about alpha carbon and alpha amide nitrogen
iii) Steric hindrance imposed by shapes and sizes of the amino acid side
chains
Answer
B. i and iii
43
Which of the following statements is true about competitive inhibition ?
Answer
D. Km increases and Vmax not changes
44
Which of the following statement is false regarding Warburg effect ?
i) very high rate of glycolysis followed by lactic acid fermentation
ii) occurs even in well oxygenated condition
iii) it is a consequence of damage to mitochondria
Answer
C. iii
45
lesch-Nyhan syndrome is characterized by
i) excess of HGPRT and elevated concentration of PRPP
ii) increased rate of purine biosynthesis by de novo pathway
iii) over production of urate
Answer
C. ii and iii
46
Which of the following cell structures is primarily involved in detoxification
processes and therefore abundant in liver cells ?
Answer
B. Smooth endoplasmic reticulum
47
The structural change which leads to crossover suppression and position
effect is
Answer
D. Inversion
48
Cytological manifestation of crossing over during meiosis is visible in the
form of
Answer
A. Chiasma
49
The first successful vaccine against cancer was prepared for
Answer
C. Cervical cancer
50
Which one of the following is not a G-protein coupled receptor ?
Answer
A. Transferrin receptor
51
The pore-like connections between adjacent cells is an example for
Answer
B. Gap junctions
52
Origin of replication usually contains
Answer
B. AT rich sequences
53
Which eukaryotic RNA polymerase transcribes t-RNA genes ?
Answer
C. RNA polymerase III
54
A DNA sequence that has been modified in such a way that it is unable to
produce a functional protein is termed as
Answer
B. Interrupted genes
55
Which of the following statements about pseudogenes is false ?
Answer
A. The broadest definition of a pseudogene is any gene that has received
inactivating mutations and can no longer make a functional product
56
membrane-bound and free ribosomes are structurally identical, but differ
only at a given time in terms of association with
Answer
D. Nascent proteins
57
The type of mutation that is imposed by transposons is
Answer
C. Polar mutation
58
The information retrieval tool of NCBI GenBank is
Answer
B. Entrez
59
The alignment procedure that tries to align regions with high levels of
matches without considering the alignment of rest of the sequences is
Answer
A. local alignment
60
Which of the following may be considered as the biggest disadvantage of
sexual reproduction against asexual reproduction ?
Answer
A. lot of energy and time is consumed in locating the mate
61
The group of cells of amphibian blastula capable of inducing the organizer is
called
Answer
C. Nieuwkoop centre
62
Limb bud of a tetrapod is specified by
Answer
C. Both Retinoic acid and Hox genes
63
The first organ system to develop during organogenesis is
Answer
B. Cardiovascular system
64
during In Vitro Fertilization, what method is used for implantation of a
blastocyst with more than 8 cells ?
Answer
A. Intra uterine transfer
65
If hydra is fragmented into different parts, separate group of cells re-pattern
themselves into various small hydra. Such a mode of development is termed as
Answer
D. morphallaxis
66
during gamete formation, if there is no crossing over, the pair of alleles
segregate during
Answer
C. meiosis I
67
The maximum frequency of recombination that can occur between two loci is
Answer
B. 50%
68
A sex-linked genetic disorder in which the affected children mutilate
themselves is
Answer
C. lesch-Nyhan syndrome
69
A gene inherited from mother is not expressed in the offspring, but the same
gene when inherited from father is expressed in both male and female offspring.
This phenomenon is the characteristic feature of gene
Answer
A. Imprinting
70
The newborn baby of a mother having blood group AB, Rh-positive, and
father having blood group O, Rh-negative, got mixed with other babies in the
hospital. The baby with which of the following blood groups is expected to be
of the aforesaid couple ?
Answer
B. B, Rh-positive
71
In human females, there is inactivation of one X-chromosome for dosage
compensation due to
Answer
D. methylation
72
Which of the following statement about Pampas is correct ?
Answer
C. Temperate grasslands found in South America
73
Which of the following is/are the possible consequence/s of heavy sand
mining in river beds ?
a. decreased salinity in water
b. Pollution of ground water
c. lowering of the water table
d. None of these
Select the correct answer
Answer
B. b and c only
74
Which segment of GPS consists of satellite ?
Answer
B. Space
75
Which of the following is the range of environmental conditions in which
each of the species survives ?
Answer
D. Fundamental niche
76
When did the Ramsar Convention treaty came into force in India ?
Answer
D. 01 Feb. 1982
77
There occurs the diminishing along the food chain in the amount of
Answer
A. Energy
78
Scientific names of some organisms are as below
Answer
A. Sardiella longiceps Valenciennes
79
When did the Wildlife Protection Act, 1972, come into force ?
Answer
C. 09 September 1972
80
Worldâs largest conservation programme is
Answer
D. World Wild life Fund
81
Which one of the following is not a cultivable fish in Kerala ?
Answer
D. Labeo filiferus
82
Which group of vertebrates comprises the highest number of endangered
species ?
Answer
C. mammals
83
A disease which may result from down syndrome is
Answer
C. Celiac disease
84
Which of the following caterpillar species affects the coconut ?
Answer
D. Nephantis serenopa
85
Scientists from which country discovered a new giant carnivorous dinosaur
species âmeraxes gigasâ ?
Answer
B. Argentina
86
âPeacock softshell turtlesâ or âNilssonia Formosaâ are found in which country ?
Answer
A. myanmar
87
Which of the following causes Poliomyelitis ?
Answer
B. Enterovirus
88
Night blindness is caused by the deficiency of
Answer
A. Vitamin A
89
method widely used for transforming in vitro animal cell cultures that uses
lipid vesicles or liposomes
Answer
C. lipofection
90
Chemicals used for gene transfer methods include
Answer
D. All of the above
91
Chocolates can be bad for health because of high content of
Answer
B. Nickel
92
The human genome project was launched in the year
Answer
C. 1990
93
The covalent bond which links the cell walls of gram-positive bacteria
containing two modified sugars â N â acetylmuramic acid (NAM) and
N-acetyl glucosamine (NAG) is
Answer
B. 1,4-glycosidic bond
94
The term biotechnology was coined by
Answer
C. Karl Ereky
95
HIV parasitizes
Answer
B. T-helper cells
96
âBlack stinging catfishâ (âKareeâ, âKaduâ in malayalam) is not an uncommon
freshwater fish in Kerala, especially in central Travancore; but it obtained its
scientific name only recently in 2021. Its scientific name is
Answer
D. Heteropneustes fuscus
97
Human protein Alpha-I antitrypsin is used for which of the following disease ?
Answer
B. Emphysema
98
A virus is made up of
Answer
A. Protein coat and nucleic acid
99
Which of the following statements are true about the capsomeres ?
Answer
A. It is an individual unit of the capsid
100
Which of the following virus has the smallest genome ?
Answer
B. Circovirus
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