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Which of the given statements is not true for viruses?

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Important Questions on Biological Classification

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Viruses could be crystallized, was shown by
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Bacterial viruses:
A. Infect the bacteria.
B. Usually have double-stranded DNA.
C. Are also called bacteriophages.
D. Lack of protein coat.
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A unicellular organism that has a gullet, thousands of cilia, one macronucleus & one micronucleus, is put under the group of
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Mycoplasma
(a) Lack cell wall
(b) Can survive without oxygen
(c) Are primitive organisms responsible for production of biogas
(d) Are smallest living organisms
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Select correct match w.r.t. Whittaker' system of classification
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Bacteria are considered primitive organisms because they
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Which kingdom was introduced in four kingdom classification and who proposed it?