Q. Thiobacillus thiooxidans has an optimum pH of

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Q. Balanced growth is defined as

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Q. Semi-solid media, prepared with agar at concentrations of 0.5% or less are useful for the cultivation of

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Q. The cell mass can be measured optically by determining the amount of light scattered by a suspension of cells. The measurements are usually at a wavelength of

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Q. Which of the following is not an indirect method for the measurement of cell mass?

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Q. Callus cultures are amorphous cell aggregates arising from the unorganized growth of explants on an

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Q. The protoplast can be used to

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Q. Which of the following is incorrect?

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Q. The size of a single plant cell is usually within the range of

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Q. The archaebacterium Halobacterium, an extreme halophile, and Sulfolobus, a thermoacidophile, can be cultured in the presence of antibiotics such as streptomycin and chloramphenicol because

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Q. The isolation of the gonorrhoea - causing organisms, Neisseria gonorrhoeae,from a clinical specimen is facilitated by the use of media containing

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Q. Anchorage -dependent cells require

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Q. Stringent anaerobes can be grown in a media by taking special measure as

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Q. Radical shifts in pH can be prevented by incorporating

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