• Thumbnail for 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...
    19 KB (2,101 words) - 03:23, 30 September 2024
  • Thumbnail for Meiosis
    Meiosis (redirect from Prophase I)
    replication, meiotic cells enter a prolonged G2-like stage known as meiotic prophase. During this time, homologous chromosomes pair with each other and undergo...
    64 KB (7,478 words) - 23:27, 22 August 2024
  • Thumbnail for Mitosis
    Mitosis (section Prophase)
    start of the next. These stages are preprophase (specific to plant cells), prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the...
    71 KB (7,317 words) - 12:42, 26 August 2024
  • Thumbnail for Homologous chromosome
    selection to act on. In prophase I of meiosis I, each chromosome is aligned with its homologous partner and pairs completely. In prophase I, the DNA has already...
    24 KB (2,767 words) - 22:08, 17 May 2024
  • oocytes needed for future ovulations, and these oocytes are arrested at the prophase I stage of meiosis. In humans, as an example, oocytes are formed between...
    23 KB (2,511 words) - 18:58, 18 October 2024
  • Thumbnail for Cell division
    not pass this checkpoint, it results in the cell exiting the cell cycle. Prophase is the first stage of division. The nuclear envelope begins to be broken...
    41 KB (4,735 words) - 07:20, 9 October 2024
  • Thumbnail for Synaptonemal complex
    during meiosis and is thought to mediate synapsis and recombination during prophase I during meiosis in eukaryotes. It is currently thought that the SC functions...
    8 KB (885 words) - 14:19, 3 December 2023
  • Thumbnail for Chromosomal crossover
    phases of genetic recombination, which occurs in the pachytene stage of prophase I of meiosis during a process called synapsis. Synapsis begins before the...
    32 KB (3,709 words) - 22:10, 25 July 2024
  • Thumbnail for Interphase
    first stage of mitosis, but since mitosis is the division of the nucleus, prophase is actually the first stage. In interphase, the cell gets itself ready...
    8 KB (848 words) - 04:23, 27 August 2024
  • monoamine transporter (PMAT) Four phases of mitosis: prophase, metaphase, anaphase, and telophase. Prophase: Chromatin into chromosomes, the nuclear envelope...
    669 bytes (116 words) - 10:02, 26 November 2022
  • Thumbnail for Oogenesis
    meiotic crossing over. It then stops in early prophase. Mammalian oocytes are maintained in meiotic prophase arrest for a very long time—months in mice,...
    30 KB (3,519 words) - 09:19, 29 September 2024
  • "thick threads".: 27 ), also known as pachynema, is the third stage of prophase I during meiosis, the specialized cell division that reduces chromosome...
    8 KB (888 words) - 16:39, 9 September 2024
  • Thumbnail for Synapsis
    possible chromosomal crossover between them. Synapsis takes place during prophase I of meiosis. When homologous chromosomes synapse, their ends are first...
    7 KB (898 words) - 22:02, 25 March 2024
  • Thumbnail for Preprophase
    does not occur in other eukaryotes such as animals or fungi. It precedes prophase and is characterized by two distinct events: The formation of the preprophase...
    7 KB (808 words) - 15:42, 3 December 2023
  • Thumbnail for Aster (cell biology)
    there are five stages of cell division: Prophase, Prometaphase, Metaphase, Anaphase, and Telophase. During prophase, two aster-covered centrosomes migrate...
    5 KB (631 words) - 13:52, 4 October 2024
  • Thumbnail for G2 phase
    during which the cell’s DNA is replicated. G2 phase ends with the onset of prophase, the first phase of mitosis in which the cell’s chromatin condenses into...
    22 KB (2,818 words) - 07:39, 3 June 2024
  • Zygotene (from greek "paired threads") is the second stage of prophase I during meiosis, the specialized cell division that reduces the chromosome number...
    6 KB (650 words) - 16:26, 9 September 2024
  • Thumbnail for Spermatocyte
    this is due to higher rates of degeneration of germ cells during meiotic prophase. In the following table, ploidy, copy number and chromosome/chromatid counts...
    19 KB (2,091 words) - 17:57, 23 March 2024
  • Thumbnail for Vertebrate
    cells of the female salamander. Synapsis and recombination during meiotic prophase I in these unisexual females is thought to ordinarily occur between identical...
    78 KB (7,094 words) - 10:26, 16 October 2024
  • Thumbnail for Lampbrush chromosome
    transform into the lampbrush form during the diplotene stage of meiotic prophase I due to an active transcription of many genes. They are highly extended...
    6 KB (773 words) - 08:41, 4 January 2022
  • its recently formed subsidiary, ProPhase Precision Medicine, Inc., for about $14.6 million in a combination of ProPhase Labs common stock and cash. BGI...
    15 KB (1,343 words) - 04:57, 26 July 2024
  • Thumbnail for Menopause
    primary oocytes are present at an intermediate stage of meiosis, termed prophase I (see Oogenesis). Expression of four key DNA repair genes that are necessary...
    87 KB (10,015 words) - 00:03, 12 September 2024
  • Thumbnail for Anaphase
    cleave the cohesin subunits holding the chromatids together. Interphase Prophase Prometaphase Metaphase Telophase Cytoskeleton Anaphase I Anaphase II Cdc20...
    6 KB (719 words) - 02:00, 2 May 2024
  • Thumbnail for WAPAL
    mitosis but lost on the arms. This removal of cohesin is known as the Prophase Pathway and results in the X-shape sister chromatids observed in chromosome...
    5 KB (634 words) - 08:19, 18 October 2024
  • Thumbnail for Prometaphase
    Prometaphase is the phase of mitosis following prophase and preceding metaphase in eukaryotic somatic cells. In prometaphase, the nuclear membrane breaks...
    4 KB (337 words) - 15:31, 7 March 2024
  • Thumbnail for Analytical chemistry
    Fluorescence microscope image of two mouse cell nuclei in prophase (scale bar is 5 μm)...
    33 KB (3,785 words) - 04:51, 19 September 2024
  • Thumbnail for Cell cycle
    activities and the start of the next. These phases are sequentially known as: prophase prometaphase metaphase anaphase telophase Mitosis is the process by which...
    78 KB (9,091 words) - 19:45, 9 October 2024
  • leptotene stage, also known as leptonema, is the first of five substages of prophase I during meiosis, the specialized cell division that reduces the chromosome...
    5 KB (596 words) - 20:39, 4 June 2024
  • Thumbnail for Chromomere
    chromomeres are present during leptotene phase of prophase I during meiosis. During zygotene phase of prophase I, the chromomeres of homologs align with each...
    8 KB (953 words) - 17:12, 5 January 2024
  • Thumbnail for Ovary
    follicles. Primordial follicles contain oocytes that are at an intermediate (prophase I) stage of meiosis. Meiosis is the general process in eukaryotic organisms...
    36 KB (3,428 words) - 17:05, 19 September 2024