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Home » Medical Papers » UHS MDCAT » Aptitude Test - 57
1.Calvin cycle occurs in
A. Grana of chloroplas
B. Stroma of chloroplas
C. Chlorophyll (Reactioncentre)
D. Grana of chloroplas
2. In pelvic region of human bosy, sacrum is formed by the fusion of:
A. 4 Vertebrae
B. 5 Vertebrae
C. 6 Vertebrae
D. 4 Vertebrae
3.Each muscle fibre is surrounded by a modified cell membrance called:
A. Sarcolemma
B. Sarcomere
C. Myosin Filament
D. Sarcolemma
4.Restriction endonucleasesa reproduced by:
A. Fungi
B. Algae
C. Bacteria
D. Fungi
5.__________ hormone is antagonistic to insulin and causes increase in blood glucose level.
A. Glucagon
B. Nor-epinephrine
C. Calcitonin
D. Glucagon
6.DNA segments of different lengths can be separated by a process of:
A. Western blotting
B. Northern blotting
C. Autoradiography
D. Western blotting
7.Beta cells of islets of Langerhans produce _________ hormone.
A. Glucagon
B. Insulin
C. Pancreatic Juice
D. Glucagon
8.Beta cells of islets of Langerhans produce _________ hormone.
A. Glucagon
B. Insulin
C. Pancreatic Juice
D. Glucagon
9.The central portion of adrenal gland (Adrenal Medulla) produces ________ hormone.
A. Aldosterone
B. Epinephrine
C. Androgen
D. Aldosterone
10.The is the 1st heat stable component used in PCR
A. Taq-isomerase
B. Taq-helicase
C. Taq-polymeras
D. Taq-isomerase
11.Patients of cystic fibros is (CF) produse thick mucus because of faulty
A. Trans-membrane carrie
B. Cl-ions
C. Na+ion
D. Trans-membrane carrie
12.__________ hormones are called fight and flight hormones as they prepare an organism to face stressful situation.
A. Adrenaline, Aldosterone
B. Epinephrine, Nor-epinephrine
C. Cortisone, Oxytocin
D. Adrenaline, Aldosterone
13.Chemicals used for destroying agricultural competitors are known as
A. Antibiotics
B. Pesticides
C. Disinfectants
D. Antibiotics
14.B-cells release antibodies in blood plasma, tissue fluid and lymph. This kind of immune response is called:
A. Cell Mediated Response
B. Humoral Response
C. Active Response
D. Cell Mediated Response
15.How denitrification does occur in soils
A. Bacterial reduction of NO3 —ions toN2 gas
B. Active up take of Nitrateions by plant roots
C. Drainage of manure from fields
D. Bacterial reduction of NO3 —ions toN2 gas
16.The type of immunity in which antibodies are passed from one individual to another is called:
A. Passive Immunity
B. Artificial Active Immunity
C. Natural Active Immunity
D. Passive Immunity
17.To combat the active infections of tetanus, rabies and snakes the _______ method of immunization is used:
A. Active
B. Humoral
C. Active Artificial
D. Active
18.Process by which un related species evolve to functionally resemble each other is called:
A. Convergent evolution
B. Divergent evolution
C. Co-evolution
D. Convergent evolution
19.In antibody molecule, two heavy and two light chains are bonded by:
A. Disulphide Bond
B. Monosulphide Bond
C. Hydrogen Bond
D. Disulphide Bond
20.W.O.F shows evidences from evolution through molecular biology:
A. Development of bronchiala rches in verterbrate embryo
B. Distribution of species
C. Comparision of genes and proteins in different species
D. Development of bronchiala rches in verterbrate embryo
21.W.O.F shows evidences from evolution through molecular biology:
A. Development of bronchiala rches in verterbrate embryo
B. Distribution of species
C. Comparision of genes and proteins in different species
D. Development of bronchiala rches in verterbrate embryo
22.Variable amino acid sequences in antibody molecule are found in ________.
A. Both light chains only
B. Both heavy chains only
C. One heavy and one light chain
D. Both light chains only
23.Each ________ consists of a light gathering antenna complex and reaction center.
A. Chlorophyll
B. Photosystem
C. Photon
D. Chlorophyll
24.Large population size,random mating,nomutation and no emigration or immigration are thepostulatesof:
A. Hardy-Weinberg theorem
B. Mendel'slaw of independent assortment
C. Mendel'slaw of segregation
D. Hardy-Weinberg theorem
25.Photosystem I has chlorophyll a molecules which absorb maximum light of:
A. 680 nm
B. 780 nm
C. 700 nm
D. 680 nm
26.Base substitution,deletion and insertion are examples of:
A. Chromosomal aberratio
B. Point mutation
C. Aneuploidy
D. Chromosomal aberratio
27.Cyclic flow or C4 photosynthesis produces:
A. ATP and CO2
B. ATP
C. Only CO2
D. ATP and CO2
28.Thecondition in which the heterozygote has a phenotype intermediate between contrasting homozygous parents is called as:
A. Dominance
B. Incomplete dominance
C. Co-dominance
D. Dominance
29. Immediate product formed after CO2 fixation in Calvin Cycle is:
A. Unstable 6-carbon compound
B. Unstable 5-carbon compound
C. Unstable 4-carbon compound
D. Unstable 6-carbon compound
30.Functional group of chlorophyll a is:
A. —CH3
B. —CHO
C. —COOH
D. —CH3
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