Define the leptotene,zygotene,pachytene and diplotene
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Leptotene – The chromosomes begin to condense and are attached to the nuclear membrane via their telomeres
Zygotene – Synapsis begins with a synaptonemal complex forming between homologous chromosomes
Pachytene – Crossing over of genetic material occurs between non-sister chromatids
Diplotene – Synapsis ends with disappearance of synaptonemal complex; homologous pairs remain attached at chiasmata
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