Male Thoughts on X: / X

Does sperm itself have a gender? Or does it become a gender when it develops into a baby? - Quora

hand x-ray 12 year old male, two views with the epiphyseal growth plates highlighted in color Stock Photo - Alamy

Beyond Just XX or XY: The Complexities of Biological Sex

I'm XY and I Know It”: Sex Determination Systems 101 - Science in the News

Healthy X-ray ofa foot of a 12 year old male Stock Photo - Alamy

Special Feature 1 - Diversity in Sex Sex is a continuous spectrum between male and female

Male pelvis bones and joints, X-ray - Stock Image - C033/7351 - Science Photo Library

Professor X, Marvel Animated Universe Wiki

Common Chromosomal Disorders (Chromosomes 1-5 and X and Y)

Hugh Jackman's 'Days of Future Past' 5-Day Routine - Muscle & Fitness

Anteroposterior and lateral X-ray views of the knee of a 15-year-old