Terminalisation takes place during

Pachytene

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Zygotene

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Leptotene

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Diakinesis

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Solution

The correct option is A Pachytene
Pachytene is the third stage of prophase 1 of meiosis.
During this stage, each chromosome pair separates into sister chromatids and crossing over of genes occurs.
Crossing over is also called synapsis and is one of the final stages of genetic recombination.
It is the process of exchange of genetic materials or segments between non-sister chromatids of homologous chromosomes.
So, the correct answer is A.

Suggest Corrections

(a) Pachytene	(i) Pairing of homologous chromosomes
(b) Metaphase I	(ii) Terminalisation of chiasmata
(c) Diakinesis	(iii) Cross-over takes place
(d) Zygotene	(iv) Chromosomes align at equatorial plate

	Column I		Column II
A	Leptotene	1	Terminalisation of chiasmata
B	Zygotene	2	Dissolution of the synaptonemal complex
C	Pachytene	3	Crossing over takes place
D	Diplotene	4	Formation of synaptonemal complex
E	Diakinesis	5	Condensation of chromosome