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  2. Help:Sortable tables - Wikipedia

    en.wikipedia.org/wiki/Help:Sortable_tables

    A dash, of any kind, in a blank cell in one of the first 5 cells in a column breaks default numerical sorting of a column. A dash in front of a number does not break numerical sorting. Dashes are allowed anywhere in cells if data-sort-type=number is used in the column header.

  3. Glossary of cellular and molecular biology (0–L) - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_cellular_and...

    3' untranslated region (3'-UTR). Also three-prime untranslated region, 3' non-translated region (3'-NTR), and trailer sequence.. 3'-end. Also three-prime end.. One of two ends of a single linear strand of DNA or RNA, specifically the end at which the chain of nucleotides terminates at the third carbon atom in the furanose ring of deoxyribose or ribose (i.e. the terminus at which the 3' carbon ...

  4. Cellular automaton - Wikipedia

    en.wikipedia.org/wiki/Cellular_automaton

    A cell and its two neighbors form a neighborhood of 3 cells, so there are 2 3 = 8 possible patterns for a neighborhood. A rule consists of deciding, for each pattern, whether the cell will be a 1 or a 0 in the next generation. There are then 2 8 = 256 possible rules. [6]

  5. Cell theory - Wikipedia

    en.wikipedia.org/wiki/Cell_theory

    1. All living organisms are composed of one or more cells 2. The cell is the most basic unit of life. Schleiden's theory of free cell formation through crystallization was refuted in the 1850s by Robert Remak, Rudolf Virchow, and Albert Kolliker. [5] In 1855, Rudolf Virchow added the third tenet to cell theory.

  6. Cell cycle checkpoint - Wikipedia

    en.wikipedia.org/wiki/Cell_cycle_checkpoint

    In eukaryotes, the cell cycle consists of four main stages: G 1, during which a cell is metabolically active and continuously grows; S phase, during which DNA replication takes place; G 2, during which cell growth continues and the cell synthesizes various proteins in preparation for division; and the M phase, during which the duplicated ...

  7. G0 phase - Wikipedia

    en.wikipedia.org/wiki/G0_phase

    An early observation that loss of Rb promoted cell cycle re-entry in G 0 cells suggested that Rb is also essential in regulating the G 0 to G 1 transition in quiescent cells. [20] Further observations revealed that levels of cyclin C mRNA are highest when human cells exit G 0 , suggesting that cyclin C may be involved in Rb phosphorylation to ...

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  9. Threshold potential - Wikipedia

    en.wikipedia.org/wiki/Threshold_potential

    A. A schematic view of an idealized action potential illustrates its various phases as the action potential passes a point on a cell membrane. B. Actual recordings of action potentials are often distorted compared to the schematic view because of variations in electrophysiological techniques used to make the recording.