Most schools base admissions heavily on your quantitative abilities, and many young girls are steered away from math as a focus. Fortunately nowadays, girls are steered more toward math than ever before. The long standing inequity at school that basically said that math was a boy's subject hasn't been completely eliminated but has been reduced so that more girls are taking higher level math than ever before and the girls who stick with math tend to do well at it. Even with my 2 year old son, I've noticed he'll grab a toy truck or dinosaur and avoid Barbie, without any input from me, or anyone else for that matter. If that's what you mean then yes, boys are more attracted to action toys than dolls.
Boys really do reject dolls.
And that's something that parents have discovered as soon as they bought their sons dolls in the mistaken, but well intentioned, effort to promote gender equity in their households. Don't sweat the toy issue, let them play with the toys that they want. It really is a reflection, in a 2 year old, of the toys that child finds more fascinating, and 2 year old boys are more active than 2 year old girls so it make sense that they like a toy that lets them play more actively. As they get older, they like to play with the toys other kids are playing with, which also tend to be gender typed toys. The jury is really out on what the roots are of sexual preference or orientation.