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Home » Medical Papers » Aptitude Test - 36
Hassan
1.β-cells of liver secrete a hormone that is called
A. Insulin
B. Glucagon
C. Antidiuretic hormone
D. Insulin
2.Among the three types of radioactive radiation, which have strongest penetration power?
A. Alpha
B. Gamma
C. Beta
D. Alpha
3.Vasopressin and Oxytocin are released from the
A. Placenta
B. Ovary
C. Anterior pituitary
D. Placenta
4.Antigen is a foreign protein or any other molecule which stimulates the formation of
A. MHC complex
B. Immunogen
C. Mucus
D. MHC complex
5.Emission of alpha decay from a radioactive substance causes:
A. Decreases in 'Z' by 4 and decreases in 'A' by 2
B. Decreases in 'A' by 1 and 'Z' remains same
C. Decreases in 'Z' by 1 and 'A' remains same
D. Decreases in 'Z' by 4 and decreases in 'A' by 2
6.Antibodies are produced by which of the following lymphocytes?
A. B lymphocytes
B. A lymphocytes
C. T lymphocytes
D. B lymphocytes
7.10 Joule of energy is absorbed by 10-gram mass from a radioactive source. What is the absorbed dose?
A. 1 gray
B. 1000 gray
C. 10 gray
D. 1 gray
8.T-lymphocytes become mature and competent under the influence of
A. Liver
B. Bursa of fabricius
C. Thymus gland
D. Liver
9.Isotopes are those nuclei of an element that have:
A. Same mass number but different atomic numbe
B. Same mass number as well as atomic number
C. Different mass number as well as atomic number
D. Same mass number but different atomic numbe
10.Skin and mucous membranes are part of the body defense system and they form the
A. Physical barrier
B. Mechanical barriers
C. Chemical barriers
D. Physical barrier
11.Snake bite is treated with which type of immunization?
A. Active
B. Passive
C. Humoral
D. Active
12.Which one of the following emission takes place in a nuclear reaction? 90Th234 91Pa232 + ___
A. Alpha
B. Gamma
C. Beta
D. Alpha
13.The product(s) of cyclic photophosphorylation is / are:
A. ATP
B. NADP
C. NADP and ATP
D. ATP
14.Total NADH formed by one glucose molecule during Krebs’s Cycle are
A. 6
B. 3
C. 8
D. 6
15.The terminal electron acceptor in electron transport chain is
A. Hydrogen
B. Iron
C. Cytochrome
D. Hydrogen
16.Emission of radiation from radioactive substance is:
A. Dependent on both temperature and pressure
B. Independent of temperature but dependent on
C. Independent of both temperature and Pressure
D. Dependent on both temperature and pressure
17.The end product of glycolysis is
A. ADP
B. Reduced FAD
C. Citric acid
D. ADP
18.One molecule of FADH2 is produced in Krebs’s cycle during conversion of
A. Fumarate Malate
B. Succinate Fumarate
C. Malate Oxaloacetate
D. Fumarate Malate
19.In a simple harmonic motion with a radius ‘xo’, the velocity of the particle at any point is:
A. v = ωxo 2 − x2
B. v = ω(x2 − xo 2)
C. v = ω(xo − x)
D. v = ωxo 2 − x2
20.In recombinant DNA technology _________ are tools for manipulating DNA
A. Viruses
B. Chromosomes
C. Enzymes
D. Viruses
21.In DNA finger printing process, the use of __________ produces distinctive pattern on autoradiography or X-ray film
A. Restriction enzyme
B. Microsatellites
C. Macrosatellites
D. Restriction enzyme
22.Hydrogen burns in chlorine to produce hydrogen chloride. The ratio of masses of reactants in chemical reaction is:
A. 1:35.5
B. 2:35.5
C. 1:71
D. 1:35.5
23.In the recombinant DNA technology plasmids are used as
A. Genetic material
B. Enzymes
C. Vectors
D. Genetic material
24.In which process, multiple copies of the desired genes are produced?
A. Polymerase chain reaction
B. Gene sequencing
C. Analyzing DNA
D. Polymerase chain reaction
25.The coordination number of Na+ in NaCl crystal is:
A. 6
B. 2
C. 4
D. 6
26.The enzyme adenosine deaminase is missing in person suffering from:
A. Cystic fibrosis
B. Hypercholesterolemia
C. Severe combined immunodeficiency syndrome
D. Cystic fibrosis
27.What is the niche of an organism in an ecosystem?
A. Role played by many organisms in an ecosystem
B. Role played by a dead organism in an ecosystem
C. Role played by community of microorganisms in their ecosystem
D. Role played by many organisms in an ecosystem
28.The distinct levels or links of food chain are called
A. Trophic level
B. Food web
C. Energy pyramid
D. Trophic level
29.A relationship between two or more organisms of different species in which all partners get benefit is called
A. Symbiosis
B. Parasitism
C. Commensalism
D. Symbiosis
30.Bacteria and fungi are examples of
A. Producers
B. Decomposers
C. Consumers
D. Producers
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