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Home » Medical Papers » UHS MDCAT » Aptitude Test - 43
1.VOCIFEROUS
A. Hidden
B. Loud
C. Strong
D. Hidden
2.Final acceptor of electrons in respiratory chain is:
A. Cytochrome a
B. Oxygen
C. Cytochrome a3
D. Cytochrome a
3.The end product of anaerobic respiration in humans and other mammals is
A. Pyruvic acid
B. Ethanol
C. Lactic acid
D. Pyruvic acid
4.TRANSIENT
A. Permanent
B. Temporary
C. Long
D. Permanent
5.A biochemical process which occurs within a cell to breakdown complex compounds to produce energy is called:
A. Respiration
B. Photosynthesis
C. Pyrrole
D. Respiration
6.PROWESS
A. Hindrance
B. Skill
C. Reservation
D. Hindrance
7. Which part of chlorophyll molecule absorbs light?
A. Phytol
B. Porphyrin ring
C. Pyrrole
D. Phytol
8.BEQUEATH
A. Grant
B. Imbibe
C. Irrigate
D. Grant
9.The DNA molecule formed from messenger-RNA by reverse transcriptase is called??
A. Complementary DNA
B. Recombinant DNA
C. Chimeric DNA
D. Complementary DNA
10.The agent which separates the two strands of DNA in PCR is??
A. DNA ligase
B. Primer
C. Heat
D. DNA ligase
11.Cystic fibrosis patient lack a gene that codes for trans-membrane carrier of??
A. Na+ ions
B. Cl― ions
C. Ca++ ions
D. Na+ ions
12.The phage commonly used as a vector in genetic engineering is?
A. Lambda phage
B. Gamma phage
C. T2 phage
D. Lambda phage
13.Restriction endonucleases are naturally occurring enzymes of:
A. Viruses
B. Bacteria
C. Fungi
D. Viruses
14.In an ecosystem mycorrhizae are an example of:
A. Predation
B. Symbiosis
C. Mutualism
D. Predation
15.As a result of destruction of ozone layer there is significant increase in:
A. Ultra-violet radiations
B. Greenhouse gases
C. Nitrogen oxide
D. Ultra-violet radiations
16.Higher rate of a biological activity in a nutrient rich pond water is called:
A. Water pollution
B. Air pollution
C. Eutrophication
D. Water pollution
17.The use of living organisms in industry for the production of useful products is known as
A. Parasitology
B. Biochemistry
C. Biotechnology
D. Parasitology
18.Living part of ecosystem is:
A. lithosphere
B. Hydrosphere
C. Community
D. lithosphere
19.Plants having foreign DNA incorporated into their cells are called:
A. Clone plants
B. Transgenic plants
C. Parthenocarpic plants
D. Clone plants
20. A living association between two living organisms of different species which is beneficial to both the partners is called:
A. Commensalism
B. Parasitism
C. Mutualism
D. Commensalism
21.Treatment by using attenuated culture of bacteria is called
A. Chemotherapy
B. Sterilization
C. Antisepsis
D. Chemotherapy
22. The structures which are reduced during the course of evolution and have no apparent function are called:
A. Regenerated organs
B. Vestigial organs
C. Saltatory organs
D. Regenerated organs
23.The major cause of hepatitis B is
A. Blood transfusion
B. Blood clotting
C. Absence of fibrinogen
D. Blood transfusion
24.When a gene suppresses the effect of another gene at another locus the phenomenon is termed as:
A. Over dominance
B. Pleiotropy
C. Epistasis
D. Over dominance
25.During animal cell division, the spindle fibres are formed from
A. Mitochondria
B. Centrioles
C. Ribosomes
D. Mitochondria
26.Phenylketonuria is an example of:
A. Polyploidy
B. Transmutation
C. Inversion
D. Polyploidy
27.Which component of the cell is concerned with cell secretions?
A. Plasma membrane
B. Golgi complex
C. Cytoskeleton
D. Plasma membrane
28. A situation in which one gene affects two or more unrelated characters is called:
A. Epistasis
B. Pleiotropy
C. Dominance relation
D. Epistasis
29.During which period of interphase (cell cycle) DNA is synthesized?
A. G1
B. G2
C. S
D. G1
30.The mutation which causes change in the sequence of DNA is called:
A. Point mutation
B. Chromosomal mutation
C. Deletion
D. Point mutation
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