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Biology 9th Class English Medium Online Test MCQs With Answers
Question # 1
A protein found in the rod cells of retina of eye is:
Choose an answer
Trypsin
Pepsin
Rhodopsin
None of these
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Question # 2
Viroids are composed of:
Choose an answer
RNA only
DNA only
Protein only
Both RNA and protein
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Question # 3
To waht category of molecules do enzymes belong?
Choose an answer
Carbohydrates
Lipids
Nucleic acids
Proteins
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Question # 4
Heart consists of ............ chambers.
Choose an answer
Two
Three
Four
Five
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Question # 5
Leeuwenhoek magnified pond water___________ times.
Choose an answer
100
200
300
400
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Question # 6
Induced Fit model was proposed by:
Choose an answer
Emil Fischer
Melcher
Koshland
Saugeo
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Question # 7
The microscopic study of tissues is called.
Choose an answer
Physialogy
Morphology
Histology
Entomology
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Question # 8
A related group of genera comprises:
Choose an answer
An order
A family
A class
a phylum
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Question # 9
Five senses are involved in:
Choose an answer
Hypothesis
Observations
Deduction
Experiment
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Question # 10
Phenomenon of crossing over in fruit fly was observed by:
Choose an answer
T.H. Morgan
W.Flemming
Oscar Hertwig
Louis pasteur
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Question # 11
Which of the following protein takes in part in blood clotting:
Choose an answer
Albumin
Prothrombin
Fibrinogen
Fibrin
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Question # 12
The ___________ is the membrane-enclosed structure in eukaryotic cells that contains the DNA of the cell.
Choose an answer
Mitochondrion
Chloroplast
Nucleolus
Nucleus
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Question # 13
During mitosis the number of chromosomes becomes ............... .
Choose an answer
Double
Remain same
Becomes Half
None
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