leptotene stage

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leptotene stage

biology

Learn about this topic in these articles:

principles of meiosis

In heredity: During meiosis
At the leptotene stage the chromosomes appear as long, thin threads. At pachytene they pair, the corresponding portions of the two chromosomes lying side by side. The chromosomes then duplicate and contract into paired chromatids. At this stage the pair of chromosomes is known as a tetrad,…
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