They first bombarded human DNA with x-rays, and then placed the 83 resulting fragments into different hamster cells. (sciencemag.org)
Although it is clear that «degradable» plastic bags, for example, will fall apart in the environment, the resulting fragments can persist for a long time, and there are no long - term studies on these pieces. (scientificamerican.com)
As each enzyme cuts, the sizes of the resulting fragments, which are all lined up in the right order, are measured with digital imaging. (sciencemag.org)