A genetic test for this recessive trait is available as well.
The recessive traits come out, and some of the groups die off completely.
This appears to be transmitted as an autosomal recessive trait.
Breeding might (and apparently did) give rise to bugs with recessive traits.
All the little deadly recessive traits start to come out, and combine.
Because it's a recessive trait, red hair can easily skip a generation.
"Odd that such a recessive trait should crop Out in a young lady of today."
If both parents are carriers, there is a 25% chance with each child to show the recessive trait in the phenotype.
A recessive trait might stay hidden for many generations.
You don't have any recessive traits that will cause harm.