"Bob Adkins" Wouldn't it be cool if beets had *real blood? :-)

They probably already have Bob.
Many of the Medical Molecular Crops are being engineered for blood products.
The advantages from a lack of contamination point of view are huge.
We have some of the current research on the
http://www.molecularfarming.com/othermedical.html page, as well as bits on
other pages in the site.
Yours Brian.