zygotene
Sign in to saveAlso known as zygotene phase, zygotene stage
Zygotene (from Greek for "paired threads") is the second stage of prophase I during meiosis, the specialized cell division that reduces the chromosome number by half to produce haploid gametes. It follows the Leptotene stage and is followed by Pachytene stage.
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6 sectionsContents
- Synapsis completion
- Chromosome condensation
- Recombination nodules
- Transition to pachytene
- Importance
- References
Zygotene (from Greek for "paired threads") is the second stage of prophase I during meiosis, the specialized cell division that reduces the chromosome number by half to produce haploid gametes. It follows the Leptotene stage and is followed by Pachytene stage.
== Synapsis completion == The key event during zygotene is the completion of synapsis between homologous chromosomes. Synapsis began during the previous leptotene stage, with the homologous chromosomes starting to pair together and associate lengthwise, facilitated by the synaptonemal complex protein structure.