The second stage of the prophase of meiosis, following leptotene, during which homologous chromosomes begin to pair.
〔生〕（细胞减数分裂前期的）偶线期，合线期
Example sentencesExamples
Also, the space between individual chromosomes is less in zygotene than in pachytene.
The bouquet forms at late leptotene and early zygotene and is coincident with chromosome pairing.
Meiotic prophase can be further divided into leptotene, zygotene, pachytene, diplotene, and diakinesis stages defined by the state of chromosome pairing and condensation.
Early meiotic stages, leptotene or zygotene, were observed.
That association presumably assists in pairing and is later lost during leptotene and replaced with a loose bouquet formation in zygotene.
Definition of zygotene in US English:
zygotene
nounˈzīɡəˌtēn
Biology
The second stage of the prophase of meiosis, following leptotene, during which homologous chromosomes begin to pair.
〔生〕（细胞减数分裂前期的）偶线期，合线期
Example sentencesExamples
Early meiotic stages, leptotene or zygotene, were observed.
The bouquet forms at late leptotene and early zygotene and is coincident with chromosome pairing.
Also, the space between individual chromosomes is less in zygotene than in pachytene.
That association presumably assists in pairing and is later lost during leptotene and replaced with a loose bouquet formation in zygotene.
Meiotic prophase can be further divided into leptotene, zygotene, pachytene, diplotene, and diakinesis stages defined by the state of chromosome pairing and condensation.