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  2. Visual cortex - Wikipedia

    en.wikipedia.org/wiki/Visual_cortex

    These connections enable the integration of different visual features, such as motion and form, across multiple stages of the visual hierarchy. [32] In terms of anatomy, V2 is split into four quadrants, a dorsal and ventral representation in the left and the right hemispheres. Together, these four regions provide a complete map of the visual world.

  3. Trichoplax - Wikipedia

    en.wikipedia.org/wiki/Trichoplax

    A mature individual consists of up to a thousand [clarification needed] cells that can be divided into four different cell types. The monociliated cells of the dorsal epitheloid are flattened and contain lipid bodies. The cells on the ventral side likewise possess a single cilium, while their elongated columnar shape, with a small cross section ...

  4. Cell cycle - Wikipedia

    en.wikipedia.org/wiki/Cell_cycle

    The eukaryotic cell cycle consists of four distinct phases: G 1 phase, S phase (synthesis), G 2 phase (collectively known as interphase) and M phase (mitosis and cytokinesis). M phase is itself composed of two tightly coupled processes: mitosis, in which the cell's nucleus divides, and cytokinesis, in which the cell's cytoplasm and cell membrane divides forming two daughter cells.

  5. Cell division - Wikipedia

    en.wikipedia.org/wiki/Cell_division

    The different stages of mitosis all together define the M phase of an animal cell cycle—the division of the mother cell into two genetically identical daughter cells. [3] To ensure proper progression through the cell cycle, DNA damage is detected and repaired at various checkpoints throughout the cycle.

  6. Mitosis - Wikipedia

    en.wikipedia.org/wiki/Mitosis

    This is an accepted version of this page This is the latest accepted revision, reviewed on 19 December 2024. Process in which chromosomes are replicated and separated into two new identical nuclei For the type of cell division in sexually reproducing organisms used to produce gametes, see Meiosis. For excessive constriction of the pupils, see Miosis. For the parasitic infestation, see Myiasis ...

  7. Hayflick limit - Wikipedia

    en.wikipedia.org/wiki/Hayflick_limit

    As the cell divides, the telomeres on the ends of chromosomes shorten. The Hayflick limit is the limit on cell replication imposed by the shortening of telomeres with each division. This end stage is known as cellular senescence. The Hayflick limit has been found to correlate with the length of the telomeric region at the end of chromosomes.

  8. Best Index Funds for November 2024 - AOL

    www.aol.com/9-best-index-funds-2023-221420441.html

    4. Vanguard Total Stock Market Index Fund Admiral Shares (VTSAX) The aim of Vanguard’s Total Stock Market Index Fund is to give investors exposure to all U.S. equities, including small-, mid ...

  9. Fission (biology) - Wikipedia

    en.wikipedia.org/wiki/Fission_(biology)

    Fission, in biology, is the division of a single entity into two or more parts and the regeneration of those parts to separate entities resembling the original. The object experiencing fission is usually a cell , but the term may also refer to how organisms , bodies, populations , or species split into discrete parts.