Yeast is actually an animal and reproduces via a mating process. But what happens in zero gravity? Israeli high-school students Ariel Berko and Yoav Levi from Kiryat Ata have been selected from thousands as finalists in a competition to run an experiment on Space Lab. Please watch (2 mins)
http://israel-lightontonations.blogspot.com/2012/01/youtube-space-lab-gives-teen-brainiacs.html
http://www.youtube.com/watch?feature=player_embedded&v=VHUcmvzMmJg