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Effect of Temperature
Certain plants such as the winter rye (Secale cereale) and the biennial strain of henbane (Hyoscyamus Niger) require exposure to low temperature conditions before they start flowering. A phenomenon known as 'vernalization' or 'Yaronization' was noted by the Russian Plant physiologist Gustav Gussner in 1915. Here also embryo or shoot apex seems to be the site of perception and the role of a hormone 'Vernalin" is suggested. Unfortunately like florigen, vernalin has been still elusive. Gibberellin treatment is known to substitute for cold treatment.
The blood vessels surrounding an acutely inflamed site usually represent progressive vasodilatation from the time of injury.
We now understand that mutations that cause the inhibition of apoptosis are found in tumours. Because proliferation itself is not induced by the inhibition of apoptosis, explain ho
Q What are the hyphae and the mycelium of pluricellular fungi? The major structures of pluricellular fungi are the hyphae threadlike filaments made of contiguous uni or multinu
General characters of phylum protozoa
what is the process of nitrogen fixation in soil by bacteria
Define Single Beam and Double Beam Optical Path? In simpler instruments, a single beam of light passes through the cuvettes and reaches the detector whereas in the double beam
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Illustrate about the primary minerals The minerals originally formed when once -heated magma (molten rock) cooled and formed solid igneous rocks (explained below) are called as
Adverse Effects of amantadine Amantadine may cause anorexia, nausea, peripheral edema and, particularly in the elderly, minor CNS effects such as nervousness, anxiety, insomn
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