851.
Cell was discovered by
A
Robert Brown
B
Mendel
C
Robert Hooke
D
Jagdish Chandra Bose
Answer :
Robert Hooke
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852.
" Protoplasm is physical basis of life" was said by
A
Huxley
B
Purkinje
C
Lamarck
D
Hooke
Answer :
Huxley
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853.
Variatiions in proteins are due to
A
Sequence of amino acids
B
Number of amino acids
C
R-group
D
None of the above
Answer :
Sequence of amino acids
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854.
Which one of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain
A
Lipase
B
Protease
C
Exonuclease
D
Endonuclease
Answer :
Endonuclease
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855.
Oxysomes of F0-F1 particles occur on
A
thylakoids
B
mitochondrial surface
C
inner mitochondrial membrane
D
chloroplast surface
Answer :
inner mitochondrial membrane
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856.
If the centromere is sub-median the two arms are unequal then the chromosome is called as
A
Metacentric
B
Submetacentric
C
Acrocentric
D
Telocentric
Answer :
Submetacentric
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857.
Which of the following is not a mechanical cell organelle
A
Glyoxysomes
B
Centriole
C
Diplosome
D
Blepheroplast
Answer :
Glyoxysomes
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858.
Ribosome attacherd with rough E.R. by the help of
A
Protein
B
Carbohydrate
C
Glycoprotein (Ribbophorin)
D
Phosphoprotein
Answer :
Glycoprotein (Ribbophorin)
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859.
CDNA probes are copied from the messenger RNA molecules with the help of
A
Restriction enzymes
B
Reverse transcriptase
C
DNA polymerase
D
Adenosine deaminase
Answer :
Reverse transcriptase
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860.
Which one is hexose sugar
A
Mannose
B
Galactose
C
A and B both
D
Cellulose
Answer :
A and B both
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