Life, the universe, football!
Do you like broccoli? If you do not then you could be a supertaster. This may help you detect chemicals that are possibly poisonous. Unfortunately it may prevent you from getting the natural anti-cancer compounds found in broccoli. Ex US president George W. Bush is a famous supertaster.
http://en.wikipedia.org/wiki/Super_taster

sorry I couldn’t resist this. Unless you live in a cave you must have read/heard /seen the bizarre news that watermelon contains a chemical that has the same effect as viagra.
link
Some interesting questions are being brought up around this issue at the moment. Is it right to mix human and animal cells together? what do you think? join the dabate. 
http://blogs.reuters.com/uknews/2008/05/19/is-hybrid-embryo-research-monstrous/
Jeff Goldblum – in The Fly (half human,half fly)