prophase - significado y definición. Qué es prophase
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Qué (quién) es prophase - definición

CELL CYCLE PHASE WHICH IS THE FIRST STAGE OF M PHASE OF MEIOSIS AND MITOSIS AND DURING WHICH CHROMOSOMES CONDENSE AND THE TWO DAUGHTER CENTRIOLES AND THEIR ASTERS MIGRATE TOWARD THE POLES OF THE CELL.
Chromatin condensation
  • bibcode=2008Sci...320.1332S}}</ref>
  • ''Arabidopsis thaliana'' cell in preprophase, prophase and prometaphase. Preprophase band is present along the cell wall from images 1–3, is fading in image 4, and disappears by image 5.<ref name="Nussbaum 2016 12–20"/>
  • pages=12–20}}</ref>

prophase         
¦ noun Biology the first stage of cell division, before metaphase, during which the chromosomes become visible as paired chromatids.
Origin
C19: from pro-2 + phase.
Prophase         
Prophase () is the first stage of cell division] in both [[mitosis and meiosis. Beginning after interphase, DNA has already been replicated when the cell enters prophase.
zygotene         
  • A video of meiosis I in a [[crane fly]] [[spermatocyte]], played back at 120× the recorded speed
  • Meiosis Prophase I in mice. In Leptotene (L) the axial elements (stained by SYCP3) begin to form. In Zygotene (Z) the transverse elements (SYCP1) and central elements of the synaptonemal complex are partially installed (appearing as yellow as they overlap with SYCP3). In Pachytene (P) it's fully installed except on the sex chromosomes. In Diplotene (D) it disassembles revealing chiasmata. CREST marks the centromeres.
  • Overview of chromatides' and chromosomes' distribution within the mitotic and meiotic cycle of a male human cell
PROGRESSION THROUGH THE PHASES OF THE MEIOTIC CELL CYCLE, IN WHICH CANONICALLY A CELL REPLICATES VIA TWO NUCLEAR DIVISIONS
Meiotic; Meioses; Meosis; Mieosis; Zygotene; Leptotene; Pachytene; Diplotene; Diakinesis; Meiosis I; Meiosis 1; Meiosis II; Meiosis 2; Anaphase I; Prophase I; Telophase I; Prophase II; Metaphase II; Telophase II; Anaphase II; Diplonema; Meisois; Metaphase I; Tetrad (chromosomal formation); Reduction division; Haploid stage; Zygonema; Zygotene Stage; Pachynema; Meiome; Recombined; Prophase 1; Metaphase 1; Anaphase 1; Telophase 1; Prophase 2; Metaphase 2; Anaphase 2; Telophase 2; Meiotic division; Syzygy (meiosis); Meiotic prophase I
['z??g?(?)ti:n]
¦ noun Biology the second stage of the prophase of meiosis, following leptotene, during which homologous chromosomes begin to pair.

Wikipedia

Prophase

Prophase (from Ancient Greek προ- (pro-) 'before', and φάσις (phásis) 'appearance') is the first stage of cell division in both mitosis and meiosis. Beginning after interphase, DNA has already been replicated when the cell enters prophase. The main occurrences in prophase are the condensation of the chromatin reticulum and the disappearance of the nucleolus.