371.
Hydrolytic enzymes are abundantly found in which cell organelles
A
Ribosome
B
Lysosome
C
Oxysome
D
Endoplasic
Answer :
Lysosome
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372.
The osmotic expansion of a cell kept in water is chiefly regulated by:
A
Mitochondria
B
Vacuoles
C
Plastids
D
Ribosomes
Answer :
Vacuoles
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373.
Polusome is formed by
A
A ribosome with several subunits
B
Ribosomes attacched to each other ina linear arragenment
C
Several ribososoes attached to a single mRNA
D
Many ribosomes attached to a strand of endophasmic reticulumm
Answer :
Several ribososoes attached to a single mRNA
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374.
A DNA strand is directly involved in the synthesis of all the following except
A
Another DNA
B
T-RNA & m-RNA
C
R-RNA
D
Protein
Answer :
Protein
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375.
Which of the following biomolecule is insoluble in water
A
α - Keratin
B
Haemoglobin
C
Rbonuclease
D
Adenine
Answer :
α - Keratin
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376.
Who propsed the name sarcode for protoplasm
A
Van mohl
B
Corti
C
Dujardin
D
Schultz
Answer :
Dujardin
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377.
Which element is most abundant outside animal cell
A
Na
B
K
C
I2
D
Fe
Answer :
Na
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378.
The singer's Model of Plasma membrane differs from the Robertson's model in the
A
Number of lipid layers
B
Arranement of proteins
C
Arrangement of lipid layers
D
Absence of protein layers
Answer :
Arranement of proteins
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379.
Production of a human protein in bacteria by genetic engineering is possible because
A
Bacterial cell can carry out the RNA splicing reactions
B
The mechanisms of gene regulation is identical in humans and bacteria
C
The human chromosome can replicate in bacterial cell
D
The genetic code is universal
Answer :
The genetic code is universal
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380.
Which of the following organ has single membrane?
A
Nucleus
B
Cell Wall
C
Mitochondria
D
Spherosomes
Answer :
Spherosomes
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