Middle School. But then you're like, hey, but there's so many different characteristics that differentiate a man from a woman. Sex-Linked and Sex-Limited Traits. In classical geneticsa mating experiment called a reciprocal cross is performed to test if an animal's trait is sex-linked. It only codes for on the order of 78 genes.
Most of them code for something other than female anatomical traits.
Ellie. i always have been a romantic and i am pretty sure that isn't going to change soon. if you like a weekend in paris, venice, or anywhere else you may dream to be, a picnic in the park or anyplace where we can just admire each others smiles under a moonshine, if you love to be discovered with a gentle touch and to be kissed like you never thought possible, then be my date!