"Donors are rarely chosen on physical attributes alone as education and occupation plays a big part in the decision, Ms Carrigan said.
Genetic scientists have warned that redheads are a dying breed and are likely to be extinct within 100 years. Due to the small percentage of redheads in the population it is rare to have two red headed parents which gives a higher chance of a redhaired baby.
"A donor with red hair does not guarantee a child with red hair as basically it is a genetic tumble drier," Brisbane IVF fertility doctor David Molloy said.
Four year old Ariana Miller has a glorious head of red locks but neither of her parents are redheads.
"Ariana's hair colour gets a lot of attention and I think it's good to be different," dad Steve Miller from McDowall Brisbane said.