811. Primary cell wall formed by

A Intussusception
B Apposition
C Intussusception & lignification
D Mineralization
Answer :   Intussusception
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812. Which of the following is employed in recombinant DNA technology

A Plastids
B Plasmids
C Ribosomes
D Histones
Answer :   Plasmids
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813. ATP ase activity occur in

A Head of F-particle
B Stalk of F-particle
C Base of F1-particle
D All of the above
Answer :   Head of F-particle
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814. A nucleic acid contains thymine or methylated uracil then it should be

A DNA
B RNA
C Either DNA or RNA
D RNA of bacteria
Answer :   DNA
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815. Sphaerosome are involved in

A Synhaerosome and storage of lipid
B Synthesis of proteein
C β-oxidation of fatty acids
D Synthesis and storage of carbohydrate
Answer :   Synhaerosome and storage of lipid
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816. Fluid mosaic model of cell membrane was put forward by

A Danielli and Davson
B Singer and Nicolson
C Garner and Allard
D Watson and Crick
Answer :   Singer and Nicolson
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817. Out of 64 codons only 61 codes for the 20 different amino acids. This character of genetic code is called

A Degeneracy
B Non ambiguous nature
C Redundancy
D Overlapping
Answer :   Degeneracy
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818. In three dimensional view the molecule of t -RNA is

A L-shaped
B S-shaped
C Y-shaped
D E- shaped
Answer :   L-shaped
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819. Sugar with gfive membered ring called

A Pyranose
B Furanose
C Dextrorotatory
D Laevortatory
Answer :   Furanose
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820. Hormones, enzymes and vitamins are included in same group of biochemicals because these all

A Composed of protine
B Regulate oxidative metabolism
C Synthesized in animal body
D Help to regulate the metabolism
Answer :   Help to regulate the metabolism
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