Which of the following is a slime mould?

(1) Rhizopus

(2) Physarum

(3) Thiobacillus

(4) Anabaena

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Ergot of rye is caused by a species of:

(1) Phytophthora

(2) Uncinula

(3) Ustilago

(4) Claviceps

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A genetically engineered micro-organism used successfully in bioremediation of oil spills is a species of:

(1) Pseudomonas

(2) Trichoderma

(3) Xanthomonas

(4) Bacillus

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Two plants can be conclusively said to belong to the same species if they:

(1) can reproduce freely with each other and form viable seeds

(2) have more than 90 percent similar genes

(3) look similar and possess identical secondary metabolites

(4) have same number of chromosomes

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True nucleus is absent in

(1) Anabaena

(2) Mucor

(3) Vaucheria

(4) Volvox

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Cell wall is absent in

(1) Aspergillus

(2) Funaria

(3) Mycoplasma

(4) Nostoc

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Which of the following shows coiled RNA starand and capsomeres?

(1) Polio virus

(2) Tobacco mosaic virus

(3) Measles virus

(4) Retrovirus

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Viruses have

(1) DNA enclosed in a protein coat

(2) prokaryotic nucleus

(3) single chromosome

(4) Both DNA and RNA

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Cellulose is the major component of cell walls of

(1) Pythium

(2) Xanthomonas

(3) Pseudomonas

(4) Saccharomyces

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The imperfect fungi which are decomposers of litter and help in mineral cycling belong to

(1) Deuteromycetes

(2) Basidiomycetes

(3) Phycomycetes

(4) Ascomycetes

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