sex-linked gene

Pronunciation

Noun B2 Upper-intermediate

A gene located on a sex chromosome, so the trait it controls is inherited differently by males and females.

"Because the sex-linked gene for red-green colour blindness sits on the X chromosome, the condition is far more common in men."

Test yourself

Which word fits the gap? "Because the _____ for red-green colour blindness sits on the X chromosome, the condition is far more common in men."

Answer: sex-linked gene

In your own words, what does "sex-linked gene" mean?

A gene located on a sex chromosome, so the trait it controls is inherited differently by males and females.