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  2. Cell culture - Wikipedia

    en.wikipedia.org/wiki/Cell_culture

    A cell strain is derived either from a primary culture or a cell line by the selection or cloning of cells having specific properties or characteristics which must be defined. Cell strains are cells that have been adapted to culture but, unlike cell lines, have a finite division potential.

  3. Use of fetal tissue in vaccine development - Wikipedia

    en.wikipedia.org/wiki/Use_of_fetal_tissue_in...

    Since the cell strains in use originate from abortions, [2] there has been opposition to the practice and the resulting vaccines on religious and moral grounds. [ 1 ] [ 3 ] [ 4 ] The vaccines do not contain any of the original fetal tissue or cells or cells derived from fetal materials. [ 5 ]

  4. Golgi's method - Wikipedia

    en.wikipedia.org/wiki/Golgi's_method

    The cells in nervous tissue are densely packed, and little information on their structures and interconnections can be obtained if all the cells are stained. Furthermore, the thin filamentary extensions of neural cells, including the axon and the dendrites of neurons, are too slender and transparent to be seen with normal staining techniques.

  5. What Is the 'Green Line Test,' Exactly? What To Know About ...

    www.aol.com/green-line-test-exactly-know...

    "The green line test assumes a lot and doesn’t account for very human things like subconscious thought, triggers and other emotional data, survival instincts, the setting photos were taken in ...

  6. MRC-5 - Wikipedia

    en.wikipedia.org/wiki/MRC-5

    MRC-5 (Medical Research Council cell strain 5) is a diploid cell culture line composed of fibroblasts, originally developed from the lung tissue of a 14-week-old aborted white male fetus. [ 1 ] [ 2 ] The cell line was isolated by J.P. Jacobs and colleagues in September 1966 from the seventh population doubling of the original strain, and MRC-5 ...

  7. Tryon's Rat Experiment - Wikipedia

    en.wikipedia.org/wiki/Tryon's_Rat_Experiment

    Tryon's Rat Experiment is a psychology experiment conducted by Robert Tryon in 1940 and published in the Yearbook of the National Society for Studies in Education. [1] The study is seen as a landmark in the nature versus nurture debate.

  8. Hayflick limit - Wikipedia

    en.wikipedia.org/wiki/Hayflick_limit

    The typical normal human fetal cell will divide between 50 and 70 times before experiencing senescence. 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.

  9. What does a faint line on a rapid COVID-19 test mean? - AOL

    www.aol.com/faint-line-covid-19-test-225851470.html

    From there, you should know what your results actually mean, including a faint positive line, and when to take another test or get a more sensitive COVID-19 test from your doctor to clear things up.