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Cell Cultivations

Cell Cultivations
Which of the following is an abiotic elicitors?

UV irradiation
Heavy metal ions
All of these
Osmotic shock

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Cell Cultivations
For most bacteria, the optimum pH for growth lies between

3.5-4.5
6.5-7.5
4.5-5.5
5.5-6.5

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

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Cell Cultivations
Anchorage -dependent cells require

either (a) or (b)
dry surface for growth
nothing to do with the surface
wettable surface for growth

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Cell Cultivations
Radical shifts in pH can be prevented by incorporating

a buffer
a reducing agent
any of these
an oxidizing agent

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Cell Cultivations
The protoplast can be used to

create plant hybrid
study plant viral infections
modify genetic information
all of these

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