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Biology Life Science Test Medium Mode MCQs With Answers
Question # 1
In human body amount of oxygen is.
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50%
65%
40%
70%
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Question # 2
In lysogenic cycle, the DNA of bacteriophage
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Joins the bacterial chromosomes
Attaches to the inner surface of the host membrane
Is immediately degraded when it enters the host
Goes directly to the host's ribosomes for translation
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Question # 3
First discovered antibiotic
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Lovastatin
Cyclosporine
Penicillin
Ergotine
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Question # 4
Conjugated histone proteins are.
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Structural and Regulatory
Structural only
Regulatory only
Transport proteins
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Question # 5
In the five kingdom system of classification of Robert Whittacker, the members of kingdom plantae are autotrophic, eukaryotic and
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Multicellular
Motile
Either unicellular or multicellular
Have sexual reproduction
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Question # 6
Which of the following animals has no need for a gall bladder
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Cat
Man
Lion
Goat
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Question # 7
In the first step of citric acid cycle, acetyl CoA reacts with oxaloacetate to form
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Pyruvate
Citrate
NADH
ATP
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Question # 8
After a fatty meal, fat globules may make up
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10% of the lymph
1% of the lymph
15% of the lymph
1.5 % of the lymph
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Question # 9
Study of tissues is called.
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Morphology
Anatomy
Histology
Microbiology
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Question # 10
Helical shape of polypeptide is due to presence within molecule.
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Covalent bond
Hydrogen bond
Peptide bond
disulphide bond
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Question # 11
The shrinkage of protoplast of a cell
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DE plasmolysis
Incipient plasmolysis
Guttation
Plasmolysis
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Question # 12
What does not happen during inspiration in man?
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Intercoatals musles contract
Ribs are elevated
Diphragm becomedome- shaped
Ribs move forwards
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Question # 13
Animals of the group of flatworms have simple tubular secretory system called of
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Kidney
Nephron
Protonephridia
Nephridia
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Question # 14
Abscisic acid can be sprayed on tee crops to regulate
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Leaf drop
Shoot drop
Cone drop
Fruit drop
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Question # 15
The cerebrospinal fluid is similar in composition to
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Blood
Blood plasma
Blood serum
Blood proteins
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Question # 16
Darwin's origin of species was published in.
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1840
1859
1865
1890
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Question # 17
The most concentrated external environment is termed as.
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Hypotonic
Hypertonic
Osmotic
Isotonic
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Question # 18
Cystic fibrosis patients lack a gene that codes for trans membrane carrier of.
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Chloride ion
Calcium ion
Sodium ion
Magnesium ion
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Question # 19
Innate behavior is all except;
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Coded in DNA
Modified in individuals life span
Modified with species evolution
Programmed responses to external stimuli
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Question # 20
Interphase period can be divided into.
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G1,G2, G3
G1, G2, F1
G1, S, G2
S1, G1, S2
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Question # 21
The interaction between different genes occupying different loci is
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Pleiotropy
Epistasis
Bombay phenotype
Linkage
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Question # 22
In 1917, term Niche was first proposed by American ornithologist named.
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Charles Eltarf
Joseph Grinnell
Lamerck
Ernst Haeckel
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