• The_v@lemmy.world
    link
    fedilink
    arrow-up
    15
    ·
    8 days ago

    It’s a recessive gene on the X chromosome.

    In females this means that it only expresses if both chromosome have the orange gene.

    Since males only have one X chromosome it always expresses if present.

    The orange males to female ratio in a population will average around 4:1.