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Which of the following events is seen in zygotene phase?

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Which of the following events is seen in zygotene phase?

(a) Synapsis

(b) Recombination

(c) Terminalization

(d) Equatorial ring formation

I have been asked this question by my college professor while I was bunking the class.

This intriguing question comes from Meiosis Prophase 1 : Zygotene in chapter Chromosomal Changes During Meiosis of Cytogenetics

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Correct option is (a) Synapsis

To elaborate: The main process taking place in zygotene is synapsis i.e. lengthwise pairing of homologous chromosome. Recombination follows this pairing and occurs in the pachytene stage.

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