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Functions of Synergids
Ultra structurally the structure and concentration of cell organelles reveals that synergids are metabolically active. The following Wee functions are attributed to synergids.
1. Directing of pollen tube growth by secreting some chemotropically active substances.
2. The degenerating synergids form the site for pollen tube discharge in the embryo sac.
3. The filiform apparatus may aid in the absorption and transportation of materials into the embryo sac from the nucellus.
Post-partum anoestrus Reproductive efficiency among animals greatly depends upon detection of estrus. This is even more important in reference to small herds managed under tro
Risk Assessment of Biological Hazards Biological hazards of concern to public health include pathogenic strains of bacteria, viruses, helminths, protozoa, algae and certain tox
1. In rabbits, black fur is dominant to brown, and long hair is dominant to short hair. A male is mated to several brown, short-haired females. These matings result in the followin
What do you understand by Compound eye? The characteristic eye of the Arthropoda. It comprise many ommatidia, the basic optical unit of compund eye, grouped together to form th
Dry Stigma - Category of Stigma The Cotton (Gossypium hirsutum) stigma is covered with long unicellular hairs. At the time of pollination, the stigmatic hairs show a distinct
Antiviral activity
Kinds of Matter On basis of its chemical organization, matter id of three categories elements, compounds and mixture An element is composed of obviously, earth similar atoms
Explain the Effect of Deficiency of Vitamin E? Fortunately, vitamin E deficiency in human is extremely rare. This may probably be due to its wide occurrence. in natural foods a
heating a food sample with Benedict''s solution is a test for...
The male had a female first cousin (on his father side) who died from TSD and the female had a maternal uncle with TSD. Assume this trait is very rare. 1. Calculate the probabil
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