651.
Degeneracy of genetic code was discover by
A
Mc Clintock
B
Khorana
C
Ochoa
D
Lymphatic circulation
Answer :
Lymphatic circulation
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652.
If base order in one chain of DNA is "ATCGA" then how many no. of H- bond found in DNA duplex
A
20
B
12
C
10
D
11
Answer :
12
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653.
The formation of protein can be considered as
A
Dehydration synthesis
B
Dehydration analysis
C
Hydration synthesis
D
Hydration analysis
Answer :
Dehydration synthesis
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654.
Nucleolus in Eukaryotic cell is
A
Nonliving
B
Visble at Metaphase
C
Bounded by membrane
D
The site of packaging of r-RNA with proteins
Answer :
The site of packaging of r-RNA with proteins
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655.
" Durs" are
A
Crystals of calcium carbonate
B
Crystals of calcium oxalate
C
Alkaloids
D
Crytals of silica
Answer :
Crystals of calcium oxalate
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656.
Aerobic respiration is performed by
A
Mitochondria
B
Chloroplast
C
Ribosome
D
Golgibody
Answer :
Mitochondria
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657.
Number of chiral carbons in β - D - (+) - glucose is
A
Five
B
Six
C
Three
D
Four
Answer :
Five
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658.
Which sugar does not give Benedict's test
A
Glucose
B
Multose
C
Fructose
D
Sucrose
Answer :
Sucrose
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659.
Among the following examples which is a monosaccharide
A
Glucose
B
Maltose
C
Sucrose
D
Raffinose
Answer :
Glucose
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660.
Selective permeabilty occurs in
A
Cell wall
B
Plasma membarne
C
Cytoplasm
D
None of the above
Answer :
Plasma membarne
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