Kraig Biocraft Laboratories Inc (KBLB)

[Beazy]

I gotcha, and they haven't been able to produce that? So do they have to genetically test all offspring to verify what type of silk they are producing?

It could be a number of reasons. There could also be a slim possibility that the homozygous strain isn't viable or sustainable. I would hope that the guy in charge of genetic engineering in their group would have a specific answer to that after working on the project for a number of years now.