The agency cites safety concerns with customers of Genetech who reported getting E. coli infections and sends letters to other stem cell companies reminding them to follow the rules.
Robert Hooke had coined the word “cell”—short for cellula, or “small compartment” in Latin—in the mid-17th century, after he’d seen tiny rectangular shapes while studying slices of cork using a ...
However, Schwann, one of the early proponents of the cell theory, had already recognized this possibility in 1839 when he stated, ‘We have seen that . . . cells are formed and grow in accordance ...