Odz bodkins!
idunno--are you asking whether there's a correlation between the shape of the jaw/chin and the relative amounts of testosterone and estrogen present in a person? The answer to that is plainly, no. You can take an injection of testosterone (greatly changing the the t/e proportino) and your jaw will NOT change shape. (And women's jaws would change shapes on a monthly cycle from menarche to menopause.)
I suspect that's not what you're asking. If you can clarify your question, you'll probably find the answer.
I was just reading some dubious stuff about a correlation in the ratio of the length of the 2nd and 4th digits (index and ring fingers) to the amount of testosterone present in the uterine environment during the first trimester. (Women's 2nd:4th digit ration is nearly 1, while men's tend to be lower--i.e. women's 2D and 4D are nearly the same length, while men tend to have more different lengths.) What little I've been able to find on it isn't very convincing. Anyone know about that?