Can A Male Be Heterozygous For Color Blindness?
Can A Male Be Heterozygous For Color Blindness? Can a male be heterozygous for color blindness? 5 replies. Males are typically XY, meaning that they would have to obtain their X chromosome from their mother. They can never be heterozygous as the colour-blindedness is sex-linked; i.e. the X chromosome determines whether you’ll get the disorder