Scientific American Frontiers - Never Say Die: Wisdom of the Worms
In 1999, scientists working to map the human genome announced that they had sequenced one billion base pairs of DNA. Before they can study genes, biologists first have to extract DNA. In this activity, you'll view actual DNA after isolating it from onion cells.
6, 7, 8, 9, 10
Histology, Biological And Life Sciences, Natural History, Biology, Embryology