[darmel]

How many chiral carbons are in benzo(a)pyrene?  Also, what is the maximum amount of stereoisomers possible with this many chiral centers?  How many isomers are there?  How many of the isomers are carcinogenic?  What type of chemical interaction occurs between the PAH metabolite (benzo(a)pyrene) and DNA?

[AWK]

No chiral carbon atoms are present in BaP

see:
http://risk.lsd.ornl.gov/tox/profiles/bap.shtml