Could DNA that is no longer present in the human genome have helped to make humans what we are? Very likely.

Prior posts have looked at a variety of issues related to genes and what allegedly makes humans what we supposedly are. But, is it possible that DNA that is no longer present in the genome also helped to shape us? How would we know? Most research into homo sapien genomics has focused on teasing out...

California adds methyl isobutyl ketone, a widely used solvent, to the Prop. 65 list of chemicals

Methyl isobutyl ketone (CAS No. 108-10-1) is a very widely used solvent. The Office of Health Hazard Assessment (known affectionately as OEHHA [o-we-hah]) published a notice Sept. 16, 2011, that it intended to list MIK pursuant to the "labor code mechanism" (see