Penny Riggs

Penny Riggs is an Associate Professor of Functional Genomics and Associate Vice President for Research at Texas A&M University.
What Is mRNA? Here’s A Crash Course On What It Does ktsimage/iStock via Getty Images Plus

What Is mRNA? Here’s A Crash Course On What It Does

The messenger molecule that’s been in every living cell for billions of years is the key ingredient in some COVID-19 vaccines.