It's incredibly rare, but it
CAN happen!
Check it out:
http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_article_id=377839&in_page_id=1770&in_a_source=&ct=5
This case is particularly interested because it's not one white/fair haired parent and one black parent, but two biracial parents, the genetic combination of whom produced one white child and one black child! Amazing!
.
Catherine Ann Genevieve.