Sekskenmerken

Sekskenmerken, often translated as "sex characteristics," refers to the biological traits that distinguish males and females. These characteristics are determined by genetics, primarily through the combination of sex chromosomes. Humans typically have a pair of sex chromosomes, with XX usually leading to the development of female characteristics and XY leading to the development of male characteristics. However, variations in chromosomal combinations can occur, leading to intersex variations.

At puberty, these underlying genetic differences lead to the development of secondary sex characteristics. In individuals with typical female development, these include the development of breasts, widening of hips, and the onset of menstruation. In individuals with typical male development, these include the growth of facial and body hair, deepening of the voice, and increased muscle mass.

Beyond these secondary characteristics, primary sex characteristics are also present from birth. These are the reproductive organs themselves, which differ between biological males and females. These primary and secondary sex characteristics are the observable physical manifestations that are commonly associated with biological sex. It's important to note that while these characteristics are generally binary, the spectrum of human biological variation is complex and can encompass a range of presentations.