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Syngamy and Triple Fusion
After traversing through the stylar region, the ultimate destination of the pollen tube is to reach the female gametophyte and release the male gametes that can ensure fertilization. In angiosperms, double fertilization is an important feature which involves fusion of one male gamete with the egg (syngamy) to from the zygote, the progenitor of next generation and the other male gamete fuses with the fusion product of the polar nuclei (secondary nucleus),resulting in triple fusion (haploid male gamete + two haploid polar nuclei = 3n), the primary endosperm nucleus.
Hormon e . The chief cells of the parathyroids secrete a hormone called parathyroid hormone (PTH) or parathormone or also called Collip's hormone after the name of its discove
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Three point charges are located at the corners of an equilateral triangle as in the figure below. Find the magnitude and direction of the net electric force on the 1.40 µC charge.
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Three charges are at the corners of an equilateral triangle, as shown in the figure below. Calculate the electric field at a point midway between the two charges on the x-axis. (Le
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Q. Spontaneous deamination of cytosine: 1. Deamination of cytosine is common and results in conversion of cytosine to uracil 2. can be repaired by excision repair process (i)
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