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Home » Medical Papers » UHS MDCAT » Aptitude Test - 35
1.The comparative embryology of all vertebrates shows development of
A. Hairs
B. Gill pouches
C. Scales
D. Hairs
2.In men, sex-determination depends upon the nature of
A. Heterogametic male
B. Homogametic female
C. Heterogametic female
D. Heterogametic male
3.Population of different species (plants and animals) living in the same habitat form a
A. Community
B. Ecosystem
C. Biosphere
D. Community
4.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
5.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
6.Chemicals produced by microorganisms which are capable of destroying the growth of microbes are called
A. Antigen
B. Biocidal
C. Antiseptics
D. Antigen
7.Plastids are only found in the
A. Animals and Plants
B. Animals
C. Plants
D. Animals and Plants
8.Plasma membrane is chemically composed of
A. Phospholipids only
B. Lipids and proteins
C. Lipids and carbohydrates
D. Phospholipids only
9.Plasma membrane is chemically composed of
A. Phospholipids only
B. Lipids and proteins
C. Lipids and carbohydrates
D. Phospholipids only
10.Plasma membrane is chemically composed of
A. Phospholipids only
B. Lipids and proteins
C. Lipids and carbohydrates
D. Phospholipids only
11.Endoplasmic reticulum contains a system of flattened membrane-bounded sacs which are named as
A. Cristae
B. Marks
C. Cisternae
D. Cristae
12.Lipids synthesis / metabolism takes place in which of the following organelle?
A. Mitochondria
B. Vacuoles
C. Rough endoplasmic reticulum
D. Mitochondria
13.Ribosomes exist in two forms, either attached with RER or freely dispersed in the
A. Tonoplast
B. Golgi bodies
C. Cytoplasm
D. Tonoplast
14.Ribosomes exist in two forms, either attached with RER or freely dispersed in the
A. Tonoplast
B. Golgi bodies
C. Cytoplasm
D. Tonoplast
15.Exchange of segments between homologous chromosomes is called
A. Segregation
B. Independent assortment
C. Crossing over
D. Segregation
16.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
17.The ribosomal RNA is synthesized and stored in
A. Endoplasmic reticulum
B. Nucleolus
C. Golgi complex
D. Endoplasmic reticulum
18.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
19.In Down’s syndrome, which one of the following pair of chromosome fails to segregate?
A. 7
B. 18
C. 21
D. 7
20.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
21.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
22.Which of the following is a peptide bond?
A. –C–N
B. –C–O
C. –C–P
D. –C–N
23.Which of the following is a peptide bond?
A. –C–N
B. –C–O
C. –C–P
D. –C–N
24.Which of the following is an unsaturated fatty acid?
A. Acetic Acid
B. Butyric acid
C. Oleic acid
D. Acetic Acid
25.Which of the following combination of base pair is absent in DNA?
A. A–T
B. C–G
C. A–U
D. A–T
26.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
27.The inhibitors that bind tightly and permanently to enzymes and destroy their globular structure and catalytic activity are
A. Reversible inhibitors
B. Irreversible inhibitors
C. Competitive inhibitors
D. Reversible inhibitors
28. There are four gases H2, He, N2 and CO2 at 0 °C. Which gas shows greater non-ideal behavior?
A. He
B. CO2
C. H2
D. He
29. Correct order of energy in the given subshells is:
A. 5s > 3d > 3p > 4s
B. 5s > 3d > 4s > 3p
C. 3p > 3d > 5s > 4s
D. 5s > 3d > 3p > 4s
30.Enzyme succinate dehydrogenase converts succinate into
A. Malate
B. Malonic acid
C. Citrate
D. Malate
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