Q261
Open questionWhich of the following bacterium causes crown gall disease in plants?
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Q262
Open questionFossils of blue green algae were found in lime stones with the age almost as old as
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Q263
Open questionThey have also proved extremely useful in our quest of knowledge of outer space.
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Q264
Open questionChemicals like ________ may be added to different foods or fruits to prevent or retard the growth microorganisms.
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Q265
Open questionEutrophication is the result of
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Q266
Open questionMycology is the branch of botany in which we study about
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Q267
Open questionMycology is the branch of botany in which we study about
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Q268
Open questionPhycology is the branch of botany in which we study about
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Q269
Open questionThe DNA bacterium consists of ring-like pieces known as the
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Q270
Open questionIt is commonly found in the bottom tidal pools?
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Q271
Open questionThe horizonatally growing hyphae of Rhizopus are called
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Q272
Open questionWhich one of the following scientists first time saw bacteria through a microscope made by himself ?
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Q273
Open questionThe unicellular algae used to supply and regulate the oxygen in space programmes is
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Q274
Open questionAmoeba moves in water with the help of locomotory organs called
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Q275
Open questionBacteria are (were) considered more as plants than animals because of the presence of
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Q276
Open questionKelps are obtained from
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Q277
Open questionBlue green algae possess chlorophlyll along with a pigment known as
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Q278
Open questionA cell wall material present only in blue green algae and bacteria is
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Q279
Open questionLiver fluke is parasite in the liver of
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Q280
Open questionMost bacteria reproduce by
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