>What are "half-chromosome grafted larvae"? These are larvae produced from unfertilized eggs--essentially drone larvae laid in worker cells. They are produced by caging virgin queens until they have passed mating age, and then releasing them to lay eggs. As I understand it, the nurse bees then produce copious amounts of royal jelly, which is harvested. -- Randy Oliver Grass Valley, CA www.ScientificBeekeeping.com *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html Guidelines for posting to BEE-L can be found at: http://honeybeeworld.com/bee-l/guidelines.htm