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Cell Cultivations

Cell Cultivations
Radical shifts in pH can be prevented by incorporating

a reducing agent
an oxidizing agent
a buffer
any of these

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Cell Cultivations
The size of a single plant cell is usually within the range of

20-40μm in diameter and 100-200μm long
60-80μm in diameter and 300-400μm long
40-60μm in diameter and 200-300μm long
10-20μm in diameter and 25-100μm long

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Cell Cultivations
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

400-500nm
600-700nm
500-600nm
300-400nm

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Cell Cultivations
Which of the following is an abiotic elicitors?

Heavy metal ions
Osmotic shock
All of these
UV irradiation

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Cell Cultivations
Callus cultures are amorphous cell aggregates arising from the unorganized growth of explants on an

solid nutrient medium
liquid medium
solid or liquid medium
aseptic solid nutrient medium

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Cell Cultivations
Stringent anaerobes can be grown in a media by taking special measure as

boiling the media for several minutes
passing through oxygen-free nitrogen
any of these
addition of cysteine

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