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Kerala PSC Biologist – Department Museums and Zoos Previous Question Paper – 106/2023/OL

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Post NameBiologist - Department Museums and Zoos
Question Paper Code106/2023/OL
Category Code460/2021
Date of Test7 July 2023
Exam TypeOnline Examination
Total Questions100
1
A branching diagram that depicts species divergence from common ancestors are called
Answer
C. Cladogram
2
Which gland is responsible for maintaining biological clock in humans?
Answer
A. Pineal gland
3
Fasciola hepatica causes
Answer
D. Both (1) and (2)
4
The three domain - system of classification was introduced by
Answer
D. Carl Woese
5
The boundary between Oriental and Australian region is called
Answer
A. Wallace line
6
A general increase in average body mass of animal population within a species with latitude is known as
Answer
B. Bergmann's rule
7
Identify the correct statement regarding digestive system of carnivores (i) Alimentary canal is short (ii) Saliva containing carbohydrate digesting enzyme (iii) Have a large stomach (iv) Actual digestion occurs in caucus
Answer
C. (i) and (iii)
8
Identify the correct statement regarding honeybee (i) Queen bee live on average 1-2 yrs (ii) Queen has sex twice in a year (iii) Female bees can lay 1500 - 30,000 eggs per month
Answer
A. (i)
9
Identify the snake with neurotoxic venom among the following
Answer
C. Bungarus
10
Identify the bird not included in Neognathae
Answer
A. Emu
11
Which of the following database is based on human genes and genetic disorders?
Answer
C. OMIM
12
If two sequences from different organisms are similar, there is a possibility to originate these two organisms from a common ancestor. Such sequences are termed as
Answer
B. Homologus
13
Worker bees, instead of themselves reproducing, help the queen to reproduce. This behaviour is explained as
Answer
A. Kin selection
14
Live cells are visualized through which of the following instrument
Answer
A. Phase contrast microscope
15
During oxidative phosphorylation in mitochondria the Proton Motive Force is generated by
Answer
B. Electron transport chain by Pumping of protons out into intermembrane space
16
Which among the following is an important wintering ground for migratory shorebirds along west coast of India?
Answer
D. Sindhudurg
17
Amphiblastula larva is present in
Answer
B. Phylum Porifera
18
In a chemical reactions where the substrate and product are in equilibrium in solution, what will occur if an enzyme is added?
Answer
A. The equilibrium of the reaction will not change
19
The citric acid gets in respiration yields
Answer
D. 1 GTP, 3NADH, 1 FADH2, 2Co2
20
What is the sense organ present in Phylum Cnidaria?
Answer
A. Rhopalia
21
According to Sclater classification, earth consists of how many zoo- geographic regions
Answer
B. 6
22
Colorimetry is based on which law
Answer
B. Beer-Lambert's law
23
Which among the following statements are true (i) Habituation causes increased response to stimulus due to repeated exposure (ii) The recovery of response upon the application of a new stimulus is called dishabituation (iii) Sensitisation causes increase in probability of a response due to repeated exposure to a biologically significant stimulus
Answer
B. Statement (ii) and (iii) is true
24
Implicit memory is also called
Answer
B. Non declarative memory
25
Consider a single lous with two alleles, which are at Hardy Weinberg equilibrium. If frequency of one of the homozygous genotype is 0.81. What is the frequency of heterozygote
Answer
A. 0.18
26
Directional selection causes
Answer
A. Selection of non average or extreme phenotypes
27
If the average of a series of values is 10 and their variance is 9, then the coefficient of variation ( = the ratio standard deviation / average ) is
Answer
B. 0.3
28
If a series of values consists of 31 numbers, then, for finding the median, we ordered the series ascending and we use
Answer
A. The 16th value in the ordered series
29
Which among the following is the first trigger for secretion of gastric juice?
Answer
C. Vagal input from Dorsal vagal complex
30
Histotoxic hypoxia due to deficiency in production of cytochromes is caused by
Answer
A. Inhalation or ingestion of cyanide compounds
31
Identify the major transport proteins associated with urine formation found in the thick ascending limb of Loop of Henle
Answer
A. Na/K/2Cl co-transporter, Na/H exchanger, channel
32
Match the following : 1. Eosinophil a. migrate to injury sites and do phagocytosis 2. Neutrophil b. specific acquired immunity 3. Lymphocyte c. present antigen to immunocompetent cells and destroy senescent RBCs 4. Monocyte d. phagocytosis and degrade histamine
Answer
D. 1-d, 2-a, 3-b, 4-c
33
The glucose uniport transporter GLUT3 is used for facilitating the specific transport of glucose through the hydrophobic core of phospholipid bilayer into
Answer
B. Nerve cells of brain
34
DNA damage check points in cell cycle provide time for the damaged DNA to be repaired, if the DNA in the chromosomes are damaged by radiation or chemicals during the phases
Answer
C. and
35
7S RNA transcribed by RNA polymerase III is
Answer
B. a signal recognition particle for the insertion of polypeptides into the endoplasmic reticulum
36
Identify the wrong statement
Answer
D. None of the above
37
ATP hydrolysis is essential to initiate transcription of
Answer
B. mRNAs by Polymerase II
38
Expression of genes responsible for human ABO blood grouping system do not show
Answer
A. Incomplete dominance
39
"If one of the parent has this disease, then each off spring has a 50-50 chance for developing the disease and will manifest the disease symptoms." The statement is true for which among the following single gene disorders in man
Answer
A. Huntington's disease
40
Cri du chat syndrome characterized by high pitched voice, microcephaly, round face with wide set eyes and broad-based nose is the result of
Answer
D. Deletion of the end of short arm of chromosome 5
41
Which of the following statement(s) is/are incorrect about growth curve? (i) In the S-shaped growth pattern, self-limiting or self-crowding negative feedback increases the rate of growth as density increases. (ii) The sigmoid growth form becomes a convex curve showing how growth rate decreases with density until it is zero. (iii) The slope of the tangent sigmoid growth form at any point represents the rate of growth at that point in time. (iv) As long as growth continues as a straight line on a semilog plot it can be said to be exponential.
Answer
D. Only (i)
42
Organic by-products may also increase the availability of minerals for uptake by autotrophs through a process in which the organic molecules grasp or form complexes with minerals. This process is known as
Answer
A. Chelation
43
Which of the following statement(s) is/are correct about population characteristics? (i) Density : Population size in relation to a unit of space. (ii) Natality : The rate at which new individuals are added to the population by reproduction. (iii) Population growth rate or growth form : The net result of natality, mortality and dispersal. (iv) Dispersal : The rate at which individuals are lost by death.
Answer
B. Only (i), (ii) and (iii)
44
There are two statements marked as Assertion (A) and Reason (R). Mark your answer as per the codes provided below : Assertion (A) : In the process of nitrification, soil bacteria convert or to nitrate , a form of nitrogen also commonly used by plants. Reason (R) : Bacteria in the genera Nitrosomonas and Nitrococcus first oxidize the forms of ammonia to nitrite , after which bacteria in the genus Nitrobacter convert to
Answer
A. Both A and R are true and R is the correct explanation of A
45
Which of the following set contains a category that does not belong to 1UCN Red list?
Answer
C. Endangered, Vulnerable, Susceptible
46
Which of the following statement(s) is/are incorrect about the Diversity indices? (i) Ratios for each component are squared and summed to obtain the Simpson index. (ii) Each ratio is multiplied by the log of the ratio and the products summed to obtain the Shannon index. (iii) Shannon index is calculated as
Answer
Question Cancelled
47
Match the coloumn and select the right option. (a) The Forest (1) 1973 (Conservation) Act (b) The Wild Life (2) Declare any trees or class of trees in a (Protection) Act protected forests to be reserved from a date fixed by the notification (c) Project Tiger (3) Restriction on the dereservation of forests or use of forest land for non-forests purpose (d) The Indian Forest Act (4) Prohibition of picking, uprooting, etc. of specified plant
Answer
B. a-3, b-4, c-1, d-2
48
Ecological succession on a ground formed by volcanic eruption or on the rubble created by the retreat of glaciers is referred to as
Answer
B. Primary succession
49
Which of the following is/are in-situ conservation? (i) Wild life sanctuary (ii) Botanical garden (iii) National park (iv) Zoological park
Answer
A. Only (i) and (iii)
50
An area or part of an ecosystem is said to be biodiversity hot spot if
Answer
B. the number of endemic species is high
51
Structural unit of compact bone is
Answer
B. Osteon
52
Right ventricle of heart in ox is characterized by (i) Three papillary muscles (ii) Supraventricular crest (iii) Circular in cross section (iv) Forms the apex of the heart
Answer
A. Only (i) and (ii)
53
The largest commissure of brain is
Answer
D. Corpus callosum
54
Which among these is a fibrocartilaginous joint?
Answer
C. Symphysis
55
Which among the following organs are lined by simple columnar epithelium? (i) Small intestine (ii) Omasum (iii) Gall bladder (iv) Urinary bladder
Answer
B. Only (i) and (iii)
56
Biological membranes are mostly permeable to
Answer
Question Cancelled
57
Non-protein organic compound that is necessary for the functioning of an enzyme
Answer
C. Coenzyme
58
Acid phosphatase levels in plasma are elevated in
Answer
D. Prostrate cancer
59
Which of the following does not occur when sodium intake is increased above normal?
Answer
B. Angiotensin II formation is increased
60
The respiratory centre is located in
Answer
C. Medulla oblongata and pons
61
A mammal which is capable of laying eggs is
Answer
A. Platypus
62
Red data book is published by
Answer
A. IUCN
63
The global agreement among governments to regulate or ban international trade in species under threat is
Answer
B. CITES
64
The Indian Wildlife Protection Act was put forth in the year
Answer
C. 1972
65
Scientific name of common cobra or Indian cobra is
Answer
B. Naja naja
66
The only Ape found in India is
Answer
A. Hoolock gibbon
67
Darting by blow pipe can cover a range of
Answer
A. 5-10 m
68
Which of the following is true for Asian elephants (i) Only male is tusted (ii) Twin domed forehead (iii) One finger like process at end of trunk
Answer
A. All three (i), (ii) and (iii)
69
For conservation breeding programme, each founder animal is thoroughly screened for its physical health, genetic health, and for reproduction potential by (i) LaCONES (ii) IVRI (iii) WII
Answer
A. Both (i) and (ii)
70
National Referred Centre to provide super specialized services and diagnostic facilities for better animal healthcare in Indian zoos is
Answer
A. IVRI
71
Regarding transportation of elephant which is correct (i) Elephants should not be walked for more than 3 hour at a stretch (ii) No elephant shall be made to walk more than 30 km a day (iii) Trucks with 12 feet can be used to transport adult elephants
Answer
A. (i), (ii) and (iii)
72
A common disease in captive Asian elephants is
Answer
B. Tuberculosis
73
The minimum prescribed area for outdoor enclosure of a pair of One- horned Indian Rhinoceros is
Answer
D. 2000 sq m
74
The night shelter of Tiger should have a minimum length of
Answer
B. 2.75 m
75
Which of the following is correct about Jim Corbett National Park? (i) The first National Park in India (ii) The Project Tiger was launched here in 1973 (iii) It is located in Uttarakhand
Answer
D. All three (i), (ii) and (iii)
76
The instrument used to measure the gross energy of feed and fodder is
Answer
B. Bomb calorimeter
77
Dry matter intake of giraffes is
Answer
A. 1.6 to 2.1% Body Weight
78
Vitamin A is very rich in
Answer
Question Cancelled
79
The wild animal always lived close to human settlements and prefers to be preyed on dogs and goats is
Answer
B. Leopards
80
Metabolic water produced from one gram of starch is
Answer
B. 0.56 g
81
The major inorganic component of animal body is
Answer
D. Calcium
82
Nutritive ratio of highly digestible protein rich feeds is always
Answer
A. Narrow
83
Sesame meal is deficit in limiting amino acid
Answer
B. Lysine
84
Faecal energy in digestion trial is equivalent to
Answer
A. Gross energy of faeces
85
Primary component of glucose tolerance factor is
Answer
B. Chromium
86
A zoonotic disease transmitted to human brings from exotic birds as passesines is
Answer
C. Chlamydiosis
87
When wound edges are even, apposed and have good circulation, then
Answer
A. Healing of wound by first intention takes place
88
Disease in camels known as 'surra' in which the prominent clinical signs as pulmonary edema, anemia and emaciation is caused by
Answer
C. Trypanosoma evansi
89
Loss of righting reflex, abnormal locomotion and muscle tremors in snakes are indicative of deficiency of which of the following
Answer
B. Thiamine
90
A rapidly fatal and highly zoonotic viral disease transmitted to human beings from Gorillas and Chimpanzees
Answer
A. Ebola virus disease
91
Fluid therapy is contraindicated in which type of shock
Answer
D. Cardiogenic shock
92
Causative agent of Psittacine Beak and feather Disease. Which shows clinical signs like feather dysplasia, haemorrhages in the feather, and necrotic lesions of the beak
Answer
C. Circo virus
93
Inhalant anesthetic that can be used for anaesthesia in monkeys
Answer
B. Isoflurane
94
Epulis is the tumous originating from
Answer
C. Alveolar periosteum of gum
95
Capture myopathy in wild animals which occur as a result of stress during capture and restraint is characterized by
Answer
A. Increased level of serum creatine kinase
96
A cyst that occurs as a result of occlusion of sweat gland ducts
Answer
B. Sudoriferous cyst
97
Herpes virus infection in psittacine birds which shows clinical signs as lethargy, anorexia, haemorrhagic diarrhoea and acute death is known as
Answer
D. Pacheco's disease
98
Vector for kyasanur forest disease that affects monkeys
Answer
A. Tick
99
Obturator muscle transpositioning is the technique performed to correct
Answer
D. Perineal hernia
100
The major effect of ketamine anaesthesia
Answer
C. Increase in heart rate

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