How to identify the pachytene?

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Solution

Pachytene:
The third stage of meiosis prophase-1 is called pachytene (a five-stage process).
Synapsis, or the pairing of homologous chromosomes, occurs during the zygotene stage, which comes before it.
The tetrad created by synapsis becomes evident and the four chromatids can be seen clearly in the pachytene stage.

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