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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.
Dicotyledons (2,00,000 species) The dicot's are of diverse nature. The leaves are net veined, stem contains ring of vascular bundles, cambium tissue is present so secondary
VITAMIN - A Discovered by Macollum. Also known as Retinol / Antixeropthalmic vitamin / Auxerophthol. It is vitamin for normal vision. It forms retinal pigments rho
Write about embryonic stem cell invitro methord in which transgenic animal were generated and efficient show how homologous recombination happening?
Lipid Digestion Digestion of fats is also similar in both invertebrates and vertebrates. Lipases are the - enzymes that hydrolyse fats. A single lipase can catalyse many step
Population Regulation The number of individuals in a natural population varies with time. If the size of a population declines too drastically due to some reason, it may becom
Transfer RNA (tRNA) molecules play an very significant role in protein synthesis. Each tRNA becomes covalently bonded to a particular amino acid to create aminoacyl- t
Discuss the following term in brief - Adaptive radiation Evolution of a variety of different species from a single common ancestor. Each is adapted for a particular niche, and
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Clotting Disorder - Haemophilia Haemophilia is a congenital blood clotting disorder caused by the genetic lack/ deficiency of coagulation factor VIII or antihaemophiliac
Define the Need for classification of Plants and Animals? First of all there is a need to know what classification is? Let us define in simple term. Classification is placing o
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