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121 results
  1. ... AL. 1005 ever, the cells used in the present study are not clonal cell lines, so a heterogeneous cell population is expected. The following procedure was used to ...
  2. ... well known fluctuation test. If we consider the clonal nature of bacterial ... present in the final population will depend not only on the mutation rate ...
  3. NLM Digital Collections - Annual report - National Eye Institute (1982) 
    Publication: [Bethesda, Md.] : National Eye Institute
    ... from camera lucida tracings. Major ... from a single founder cell, though this seems likely. Hypothetlcally, we can assume ...
  4. ... stem from the many cell types that are present in the nervous system and ... to proliferate; thus populations of cells that appear to be fairly homoge- ...
  5. NLM Digital Collections - Neurotransmitter Synthesis by Neuroblastoma Clones 
    Publication: National Academy of Sciences (U.S.), January 1972
    ... mitter synthesis and may generate different types of clonal cell populations that are programmed with regard to their ability ...
  6. NLM Digital Collections - Remarks on Human Cloning 
    Publication: Produced: [11-13 September 1998]
    ... us is in a sense constructed of a population of clonal cells that cel\ Wivision, that is by arose from ...
  7. NLM Digital Collections - Recent Advances in Bacterial Genetics 
    Publication: American Society for Microbiology, March 1947
    ... agent in isolating the mutants, so that all cells with the double mutated character present in a population can be isolated and counted. Second, it indicates ...
  8. NLM Digital Collections - A Neuroblastoma x Glioma Hybrid Cell Line with Morphine Receptors 
    Publication: National Academy of Sciences (U.S.), September 1974
    ... types. We hoped to obtain a relatively homogenous cell population for our studies of opiate action by examining clonal lines of neuroblastoma cells (12) for morphine receptors. ...
  9. ... protozoa, but they ranged from pioneer explorations in cellular behavior and clonal aging to the beginnings of population genetic analysis. Sonneborn likewise refused to be limi- ...
  10. ... the parental cell lines. Most neural properties of clonal cells which have been examined thus far seem to be regulated by environmental factors. Populations of cells can be shifted in synthrony from ...
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