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Biology Class 11 Chapter 5 - Variety of Life - Part 9
a) Double standard DNA
b) Mysterious brain infection in man
c) DNA incorporated in to host chromosome
d) Protective agent used to stimulate immune system
a) D'Herelle 1917
b) infectious hepatitis
c) Serum virus
d) Common cold
________ is composed of one or more species.
List of names of animal
The word virus is derived from latin word ____________.
In 1935 _________ isolated crystal of virus from infected leaf of tobacoo.
Which of these is a true statement:
a) Viruses use the hosts ribosomes for their own ends.
b) Viruses carry with them their own machinery for protein formation.
c) Viruses do not need ribosome for protein formation.
d) New viral ribosomes form after viral DNA enters in the cell.
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