Six Women Who Impacted Genetics

Six Women Who Impacted Genetics

Nettie Stevens Nettie Stevens (1861-1912, American) discovered that a fetus’s sex is determined by chromosomes contributed by the parents during conception. Previously, it was believed that environmental factors during conception determined sex. Charlotte...
How Do the COVID-19 mRNA Vaccines Work?

How Do the COVID-19 mRNA Vaccines Work?

Pfizer and Moderna grabbed headlines, and ushered in hope, in announcing this month that each company has vaccines that preliminary data suggest being 90-94% effective in preventing COVID-19 infections. This news is a much-needed salve to a world that has surpassed...