Which of the given is not observed during cell division in a meristematic cell?
Spindle fibres
Decodensation of chromosomes
Bivalent
Cell plate
Answers
➡️ DECODENSATION OF CHROMOSOMES
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Answer: The correct answer is the bivalent
Explanation: Meristematic cells are the same as the somatic cells and they show the equational division in the chromosomes so according to this the chromosomes undergo the prophase then metaphase then anaphase and then telophase according to which they condense into chromosomes arranged on the cell plate and then go to opposite poles to form spindle fibers and then finally they get divided into the two daughter cells in telophase and also there occurs the decondensation of chromosomes and bivalent chromosomes are formed because of crossing over because each duplicated chromosome consists of two identical sister chromatids joined at a point called the centromere, these structures now appear as X-shaped bodies. The mitotic spindle also begins to develop during the prophase. As the cell's two centrosomes move toward opposite poles. crossing over, or recombination is the exchange of chromosome segments between non-sister chromatids in meiosis. Crossing over creates new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity and meristematic undergoes meiosis.
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