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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