Zygotene (from greek "paired threads" [1]) 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.

Oct 27, 2020 · Leptotene is often named in unison with the following stage as the Leptotene-Zygotene transition, as the first stage is in itself a very short process. The image below shows all five stages of Prophase I, starting with leptotene at the top.

Zygotene. During zygotene homologs begin to unite (synapse) by coming into approximate alignment (zygo-is Greek for union, fusing, or yoking). Synapsis, the process of fusion that occurs between homologs begins at various points along the chromosome and extends outward, zipper-fashion, until complete.

Jun 17, 2022 · The zygotene is the stage of prophase I that follows after leptotene and precedes pachytene. Prior to zygotene, the chromosomes start to condense into long strands inside the nucleus and the chromosome s appear as threadlike.

The meaning of ZYGOTENE is the stage of meiotic prophase which immediately follows the leptotene and during which synapsis of homologous chromosomes occurs.

Zygotene is a critical stage in prophase I of meiosis, where homologous chromosomes pair through synapsis, setting the stage for genetic recombination. This precise alignment ensures proper chromosome segregation and contributes to genetic variation, which is essential for evolution and inheritance.

Zygotene The stage of meiotic prophase during which the pairing of homologous chromosomes begins. Glossary The zygotene spermatocyte is characterized by the presence of a synaptonemal complex in P.

Zygotene is the second stage of meiosis prophase-1. It is preceded by the leptotene stage, where uncoiling and condensing of chromosomes takes place. In the zygotene stage, homologous chromosomes (one from mother and one from father) come together and pair.

Oct 12, 2023 · The main difference between leptotene and zygotene is that chromosomes are visible and condense under an electron microscope in leptotene, whereas synapsis between homologous chromosomes occurs in the zygotene stage.

Zygotene is the stage of meiotic prophase which instantly follows the leptotene and during which synapsis of homologous chromosomes occurs. It is also recognized as zygonema.