391. What would happen if lysosomes get ruptured inside the cells, in which they are present

A Cella will swell
B Cells willl die
C Cells will shrink
D Nothing would
Answer :   Cells willl die
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392. Which base is present in RNA but not in DNA

A Uracil
B Thymine
C Guanine
D Cytosine
Answer :   Uracil
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393. If genetic code is tetraplet then what is the possible number of codons which code 20 types of amino acids

A 261
B 64
C 256
D 43
Answer :   256
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394. Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?

A Ribosome
B Chloroplast
C Mitochondrion
D Lysosome
Answer :   Mitochondrion
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395. Pit membrane of simple pit is formed by

A Secondary cell wall
B Middle lamella
C Primarycell walll
D Plasma membrane
Answer :   Middle lamella
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396. The cell organelle involved in glyco-sylation of protein is

A ribosome
B peroxisome
C endoplasmic reticulum
D mitochondria
Answer :   endoplasmic reticulum
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397. A sequence of three consecutive bases in a t-RNA molecule which specifically binds to a complementary codon sequence in m RNA is known as

A Triplet
B Non-sense codon
C Anti codon
D Termination codon
Answer :   Anti codon
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398. Which of the following is known as System of membrane

A Lysosome
B E. R.
C Mitochondria
D Chhloroplast
Answer :   E. R.
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399. Method of DNA replication in which two strands of DNA separates and synthesize new strands

A Dispersive
B Conservative
C Semiconservative
D Non conservation
Answer :   Semiconservative
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400. Ribosomes are the centre for

A respiration
B photosynthesis
C protein synthesis
D fat synthesis
Answer :   protein synthesis
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