Skip to main content

Stories by J. Lee Nelson1 articles archived since 1845

Your Cells Are My Cells

Many, perhaps all, people harbor a small number of cells from genetically different individuals--from their mothers and, for women who have been pregnant, from their children. What in the world do these foreigners do in the body?

February 1, 2008 — J. Lee Nelson

Celebrate our 170th Anniversary with us!

Get 2 years of All Access for just $170