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(A) Prophase-$I$ of meiosis is divided into five sub-stages:$1$. Leptotene: Chromatin starts condensing and appears as thin threads.$2$. Zygotene: Hom

Vedclass · Accepted Answer

Diplotene - Formation of chiasmata and separation of chromosomes.

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(A) Prophase-$I$ of meiosis is divided into five sub-stages:$1$. Leptotene: Chromatin starts condensing and appears as thin threads.$2$. Zygotene: Homologous chromosomes pair up,a process called 'synapsis'.$3$. Pachytene: Crossing over occurs between non-sister chromatids of homologous chromosomes.$4$. Diplotene: Homologous chromosomes begin to separate,but remain attached at the sites of chiasmata.$5$. Diakinesis: Terminalization of chiasmata occurs.Therefore,option $A$ is correct as the formation of chiasmata and the initiation of chromosome separation are characteristic of the Diplotene stage.

Which of the following pairs correctly matches the stages of prophase-$I$ of meiosis with the processes occurring in them?

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If $n=16$ in a plant cell,then how many chromosomes are present in each cell in metaphase-$I$ of meiosis?

When synapsis is complete all along the chromosome,the cells are said to have entered a stage of prophase $I$,where exchange of genetic material takes place between homologous chromosomes. The stage is called

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