in meiosis, crossing over occurs, where homologous chromosomes synapse and their chromatids exchange genetic information. during crossing over, the allele for one trait swaps places with the allele for the same trait on the homologous chromosome. at this point, the sister chromatids are no longer identical. when the chromatids split from each other, there are four unique haploid sperm or egg cells.

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09-12-2022
Biology

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in meiosis, crossing over occurs, where homologous chromosomes synapse and their chromatids exchange genetic information. during crossing over, the allele for one trait swaps places with the allele for the same trait on the homologous chromosome. at this point, the sister chromatids are no longer identical. when the chromatids split from each other, there are four unique haploid sperm or egg cells.

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kumarprabhat kumarprabhat · Answer 1 · 2022-12-17T08:36:41-05:00

Chiasmata in meiosis, crossing over occurs, where homologous chromosomes synapse and their chromatids exchange genetic information. during crossing over, the allele for one trait swaps places with the allele for the same trait on the homologous chromosome.

During meiosis, the chiasma, which is a structure formed by crossover recombination between a pair of homologous chromosomes, physically connects the two chromosomes. The two homologous chromosomes do not entirely split; rather, they are still joined at one or more locations, as seen by X configurations called Chiasmata. Chiasmata displacement is referred to as terminalization, and it is finished during the diakinesis stage. Prophase 1's Diplotene phase is when chiasmata are created. Crossover occurs during the first prophase of meiosis. The chiasmata designates the location of the crossing over.

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