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Home » Medical Papers » Aptitude Test - 37
Hassan
1.The cause of acid rain is
A. Oxides of carbon
B. Oxides of nitrogen and Sulphur
C. Oxides of Sulphur
D. Oxides of carbon
2.When the presence of a gene at one locus suppresses the effect of a gene at another locus, the phenomenon is called
A. Hypostasis
B. Pleiotropy
C. Epistasis
D. Hypostasis
3.The gene for ABO-blood group systems in humans is represented by symbol:
A. X
B. I
C. Y
D. X
4.When a single gene affects two or more traits, the phenomenon is called
A. Epistasis
B. Pleiotropy
C. Dominance
D. Epistasis
5.The comparative embryology of all vertebrates shows development of
A. Hairs
B. Gill pouches
C. Scales
D. Hairs
6.In men, sex-determination depends upon the nature of
A. Heterogametic male
B. Homogametic female
C. Heterogametic female
D. Heterogametic male
7.Population of different species (plants and animals) living in the same habitat form a
A. Community
B. Ecosystem
C. Biosphere
D. Community
8.The part of the body which forms a structural and functional unit and is composed of more than one tissue is called
A. Organ
B. Organelle
C. Organ system
D. Organ
9.A method in which pests are destroyed by using same living organisms or natural enemies is called
A. Pasteurization
B. Integrated disease management
C. Biological control
D. Pasteurization
10.Chemicals produced by microorganisms which are capable of destroying the growth of microbes are called
A. Antigen
B. Biocidal
C. Antiseptics
D. Antigen
11.Plastids are only found in the
A. Animals and Plants
B. Animals
C. Plants
D. Animals and Plants
12.Plasma membrane is chemically composed of
A. Phospholipids only
B. Lipids and proteins
C. Lipids and carbohydrates
D. Phospholipids only
13.Plasma membrane is chemically composed of
A. Phospholipids only
B. Lipids and proteins
C. Lipids and carbohydrates
D. Phospholipids only
14.Plasma membrane is chemically composed of
A. Phospholipids only
B. Lipids and proteins
C. Lipids and carbohydrates
D. Phospholipids only
15.Endoplasmic reticulum contains a system of flattened membrane-bounded sacs which are named as
A. Cristae
B. Marks
C. Cisternae
D. Cristae
16.Lipids synthesis / metabolism takes place in which of the following organelle?
A. Mitochondria
B. Vacuoles
C. Rough endoplasmic reticulum
D. Mitochondria
17.Ribosomes exist in two forms, either attached with RER or freely dispersed in the
A. Tonoplast
B. Golgi bodies
C. Cytoplasm
D. Tonoplast
18.Ribosomes exist in two forms, either attached with RER or freely dispersed in the
A. Tonoplast
B. Golgi bodies
C. Cytoplasm
D. Tonoplast
19.Exchange of segments between homologous chromosomes is called
A. Segregation
B. Independent assortment
C. Crossing over
D. Segregation
20.If a person has 44 autosomes + XXY, he will suffer from
A. Klinefelter’s syndrome
B. Down’s syndrome
C. Turner’s syndrome
D. Klinefelter’s syndrome
21.The ribosomal RNA is synthesized and stored in
A. Endoplasmic reticulum
B. Nucleolus
C. Golgi complex
D. Endoplasmic reticulum
22.In which stage of Interphase, there is increase in cell size and many biochemical are formed?
A. G2 phase
B. G1 phase
C. S phase
D. G2 phase
23.In Down’s syndrome, which one of the following pair of chromosome fails to segregate?
A. 7
B. 18
C. 21
D. 7
24.Carbohydrates are organic molecules and contain three elements
A. Carbon, water and oxygen
B. Carbon, Sulphur and hydrogen
C. Carbon, calcium and hydrogen
D. Carbon, water and oxygen
25.Which one are intermediates in respiration and photosynthesis both?
A. Ribose and heptolose
B. Glyceraldehydes and dihydroxyacetone
C. Glucose and galactose
D. Ribose and heptolose
26.Which of the following is a peptide bond?
A. –C–N
B. –C–O
C. –C–P
D. –C–N
27.Which of the following is a peptide bond?
A. –C–N
B. –C–O
C. –C–P
D. –C–N
28.Which of the following is an unsaturated fatty acid?
A. Acetic Acid
B. Butyric acid
C. Oleic acid
D. Acetic Acid
29.Which of the following combination of base pair is absent in DNA?
A. A–T
B. C–G
C. A–U
D. A–T
30.The type of inhibition in which inhibitor has no structural similarity to substrate and combines with enzyme at other than the active site is called
A. Irreversible inhibition
B. Competitive inhibition
C. Non-competitive and reversible inhibition
D. Irreversible inhibition
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