At the end of prophase I, the pairs are held together only within the chiasmata; they are identified as tetrads as the 4 sister chromatids of each and every set of homologous chromosomes are actually obvious.
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: a group or arrangement of 4: like a : a group of 4 cells produced by the successive divisions of the mother mobile a tetrad of spores
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For the duration of prophase I, the pairs of homologous chromosomes appear with each other to sort a tetrad or bivalent, which has four chromatids. Recombination can occur concerning any two chromatids in this tetrad framework.
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The ploidy of each mobile in the tetrad takes place to have a ploidy ‘n’ as They are really made by the meiotic division. So the answer is: the ploidy of the mobile on the tetrad is haploidy.
Even more, the sister chromatids thus made are held jointly by cohesin proteins throughout the following techniques of mobile division till they get separated over the anaphase of the mitosis and anaphase II from the meiosis II.
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: a group or arrangement of 4: for a : a tetravalent element, atom, or radical b : a group of four cells organized commonly in the shape of the tetrahedron and produced by the successive divisions of a mother cell a tetrad of spores
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