concentric
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Recently I visited a museum fossil exhibit, where I spoke with a scientist who was a volunteer. He was telling me that now, chemists can even test dirt millions of years old and exactly determine from where that dirt was derived; for example if it was plant, animal, human and even the specific organs, through chemical composition. Is it gas chromatography? He said it was quite costly. I wondered if they can do that with ash samples.
I have known for some time that the tooth fragment found in the ashes of the fire pit in the Katy Poirer case (as mentioned in a previous article) showed her DNA.
Also, can scientists get DNA from even the smallest fragments, such as dirt or ash?
I have known for some time that the tooth fragment found in the ashes of the fire pit in the Katy Poirer case (as mentioned in a previous article) showed her DNA.
Also, can scientists get DNA from even the smallest fragments, such as dirt or ash?