DNA Content of a Chromosome of Trillium erectum: Effect of Cold Treatment

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Science  14 Jan 1966:
Vol. 151, Issue 3707, pp. 215-216
DOI: 10.1126/science.151.3707.215


The DNA (Feulgen) contents of a specific cold-treated (3°C) chromosome and of a control (25°C) were measured by means of photographic-plate microdensitometry. Despite marked morphological alterations in the cold-treated B chromosome of Trillium erectum, its DNA content was unchanged from that of the control.

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