In yeast signal transduction, a yeast cell releases a mating factor, which:

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#Question id: 15868

#Unit 12. Applied Biology

If the culture is kept in stationary phase for a prolonged period, the cells may die. Why?

a) due to the time taken for doubling of cell number

b) duration of a cell generation is too large, depending mainly on the plant species.

c) stationary phase is forced on the culture by a depletion of the nutrients

d) due to an accumulation of cellular wastes

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#Question id: 15869

#Unit 12. Applied Biology

In a modest laboratory, aseptic handling, maintenance and observation of cultures, these activities can be done in the culture room.  Some facilities are required for the culture room, except?

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#Question id: 15870

#Unit 12. Applied Biology

 What is the advantage of plant tissue culture over animal tissue culture?

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#Question id: 15871

#Unit 12. Applied Biology

Various sterilization techniques used in plant tissue culture work;

Sterilization technique	Materials sterilized
A) Dry heat	i) Media, culture vessels, other glass plasticwarc, contaminated cultures
B) Autoclaving	ii) Heat labile compounds like GA3, ABA, zeatin, urea,·enzymes, etc.
C) Surface sterilization	iii) Empty glassware, instruments like scalpels, forceps, needles
D) Liquid (membrane filter of         0.45 μm or smaller pore size)	iv) All plant materials to be cultured

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#Question id: 15872

#Unit 12. Applied Biology

For optimum callus growth, the given some following vitamins are required, except;

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#Question id: 15873

#Unit 12. Applied Biology

Which is the most commonly used carbon source, for all cultured plant materials, including even green shoots.