UPDATE 27/5/9
Apologies to students trying to revise but discovering that the link didn't work (thanks ER).

Try these:

http://www.rsrevision.com/GCSE/shortcourse/medicalethics/fertilitytreatment.htm#4

http://www.hinchingbrookeschool.net/RE/medicalethics.htm

www.chsleftwich.com/humanities/RS%20Revision%20Guide%202005A.doc
(this last one is a Word document that has some details in it on this particular unit)

Please get in touch if there are any further issues.