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In the angiosperm ovule,central cell of the embryosac,prior to the entry of the pollen tube,contains?
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Explain the importance of solanaceae?
Explain polyembryony and apomixix?
You have been provided with a set of plates of fungi isolated from a diseased leaf, one Chytridiomycota, one Zygomycota, one Ascomycota and one Basidiomycota. The signs of infection indicate that the disease has been caused by a member of Ascomycota which does not form a sexual stage easily. What features would you look for in your isolates to indicate if the target fungus was present?
Is epiphyte succession influenced more by autogenic (i.e. competition, facilitation) or allogenic factors?
Explain phelloids
The xylem tissue that carries water is called?
Define electrophoresis?
why are some plants greener than others?
What specific mechanism regulates cyclic vs noncyclic electron transfer during light reactions of photosynthesis?
Which is better to grow plants in rock sand or soil?
How can Philodendron plants live with only halogen lighting?
What is the chemical process that takes place for leaves to change colour?
plants release O2 only during daytime but respire 24 hrs giving out CO2 but are said to purify air? How?
How can a spectrophotometer be used to determine chlorophyll content?
Explain cotyledons?
