Not enough women in science?

Are women underrepresented in science?  My philosophy professor was complaining that since half of all B.Sc. grads are females, it doesn't make any sense that there are so few female science professors.  Personally, I don't see what the problem is.  It's not like scientific progress is being impeded by gender inequality.

>>10

Just because some groups score lower doesn't make the tests biased, dumbass.

http://en.wikipedia.org/wiki/IQ#The_view_of_the_American_Psychological_Association

The view of the American Psychological Association

...

The task force concluded that IQ scores do have high predictive validity for individual differences in school achievement. They confirm the predictive validity of IQ for adult occupational status, even when variables such as education and family background have been statistically controlled. They agree that individual differences in intelligence are substantially influenced by genetics and that both genes and environment, in complex interplay, are essential to the development of intellectual competence.