S, primarily in the Midwest and South, have attempted, but failed, to bring such bills into law in the past year.The charged political climate of the summer has yielded many tense conversations about gender and LGBT rights – and it’s clear that these discussions are long overdue.One classic way for scientists to test whether a trait (which can be any characteristic from red hair to cancer susceptibility to love of horror movies) is influenced by genetics is twin studies.Identical twins have the exact same genetic background, and are usually raised in the same environment.Fraternal (nonidentical) twins, however, share only half their genes, but tend to also be raised in the same environment.Thus, if identical twins tend to share a trait more than fraternal twins, that trait is probably influenced by genetics.
Two sexually dimorphic (differing between men and women) areas of the brain are often compared between men and women.
Though the typical assigned sexes are “male” and “female,” often designated at birth, being transgender does not limit gender identity to these two categories, as many who identify as transgender do not feel they are exclusively masculine or feminine.
Importantly, transgender identity is independent of sexual orientation.
For instance, there may be genders that some identify with that are neither “male” nor “female.
Furthermore, there are no “lines” that divide these identities, and they may be considered malleable and overlapping.