Cell Biology Day 18

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Author:
Jacqui
ID:
306040
Filename:
Cell Biology Day 18
Updated:
2015-08-04 16:30:40
Tags:
Biology
Folders:
Biology
Description:
Day 18 of cell biology glossary
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  1. Metaphase
    The third subphase of mitosis, in which the spindle is complete and the chromosomes, attached to microtubules at their kinetochores, are all aligned at the metaphase plate.
  2. Mitosis
    A process of nuclear division in eukaryotic cells conventionally divided into five stages: prophase, prometaphase, metaphase, anaphase, and telophase. Mitosis conserves chromosome number by equally allocating replicated chromosomes to each of the daughter nuclei.
  3. Prometaphase
    The second subphase of mitosis, in which discrete chromosomes consisting of identical sister chromatids appear, the nuclear envelope fragments, and the spindle microtubules attach to the kinetochores of the chromosomes.
  4. Prophase
    The first subphase of mitosis, in which the chromatin is condensing and the mitotic spindle begins to form, but the nucleolus and nucleus are still intact.
  5. S phase
    The synthesis phase of the cell cycle; the portion of interphase during which DNA is replicated.
  6. Sister chromatids
    Replicated forms of a chromosome joined together by the centromere and eventually separated during mitosis or meiosis II.
  7. Spindle microtubules
    Protein cables used to achieve chromosome separation and cell elongation during cell division.
  8. Telophase
    The fifth and final subphase of mitosis, in which daughter nuclei are forming and cytokinesis has typically begun.
  9. Aneuploidy
    abnormal chromosome number
  10. chiasmata
    Nonsister chromatids held together by chiasmata

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