Portage Daily Register: Students in Molly Carlson’s advanced biology class at Pardeeville High School peered through their microscopes Wednesday visibly happier about their results compared to last week.
Using various chemicals, they tested the embryos of zebrafish — a species with a similar genome sequence to humans — and the students with their notes, beakers, pipettes and rubber gloves talked about their progress like scientists on the verge of breakthrough.
“We learned that glyphosate is not a very good chemical, and can cause very odd deformities,” senior Russell Bush said of his group’s second trial. Their first trial was “too heavy” and killed all the zebrafish, but on that day they could see how the glyphosate bent the tails of their living test subjects.