That is what the Psyker hunters are for
Even if they have 99% failure rate they are still showing a massive return on investment.
More like frequent demon possession, warp mutations and 100% lack of stability.
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by this story's canon a significant chunk of the AdMech as clones. And one of the Trust Worlds either did or still does mass cloning and gene tampering.
I said usually.
Its far from a constant thing.
Clones in 40K tend to either be more like blanks, or have terrible luck.
Why would they be the same people? Cloning just means using the same genetics, not replicating a fully formed person down to their neurons.
Real life cloning works like this you take an egg from a woman and you take a stem cell from *insert gender here*
You take the nucleus from the Stem Cell and stick it in the egg cell after removing the nucleus of the egg cell, give it a sharp shock and let it multiply.
This makes a GENETICALLY perfect copy.
It won't be exact of course things like height will code differently, but the same problems are still present.
Reproduction is semi random. Thus more combination, even of the same starting genes, give a wider range of results. Example: Person A and person B have two a children, each of whom has a unique genetic code despite having the same parents. Clones A1-100 and clones B1-100 have two hundred children, each of whom still has their own unique genetic code despite their genetically identical parents.
Yes, but that doesn't work for Navigator's, the gene we want is recessive.
Let me put this another way in genetics there are two major alleles Dominant and recessive.
Dominant alleles will always express themselves if paired with a recessive allele, regardless of position.
Recessive will never express themselves unless paired with another recessive gene of the same type, this is why many genetic diseases cannot be found they rely on two partners both having the recessive allele for, lets use the classic example, Cystic Fibrosis.
That's why there's inbreeding to begin with a navigator can have sex with as many people as they want, but only when they have children with another navigator can the gene coding for the navigator gene be activated.
Since they have a small population that means a limited pool of genes and more and more inbreeding.
Ask the Hapsburg's how that went.