\sˈɛlfɹiː sˈɪstəm], \sˈɛlfɹiː sˈɪstəm], \s_ˈɛ_l_f_ɹ_iː s_ˈɪ_s_t_ə_m]\
Definitions of CELLFREE SYSTEM
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A fractionated cell extract that maintains a biological function. A subcellular fraction isolated by ultracentrifugation or other separation techniques must first be isolated so that a process can be studied free from all of the complex side reactions that occur in a cell. The cell-free system is therefore widely used in cell biology. (From Alberts et al., Molecular Biology of the Cell, 2d ed, p166)
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Word of the day
- legal doctrine stating person receives money or other through no effort of his own, at expense another, recipient should return to rightful owner, even if property was not obtained illegally. Most courts will order that the be returned party who has suffered loss brings a lawsuit. 1. Benefit retention with no consideration of return where it can be reasonably expected. 2. Money obtained that is not a gift the beneficiary needs to make restitution for.