Large study of gay brothers suggests genetic link for male homosexuality
Large study of gay brothers suggests genetic link for male homosexuality
- Julio Cabrera (pictured) and his brother Mauricio are among almost 800 gay brothers nationwide who donated blood or saliva to help scientists search ...
- Julio Cabrera (pictured) and his brother Mauricio are among almost 800 gay brothers nationwide who donated blood or saliva to help scientists search ...