Where the apologists mislead people is claiming that a small population just gets absorbed and their DNA disappears. That's scientifically extremely unlikely, especially with autosomal DNA. With the Native American (Zenu from Colombia) DNA in Polynesia example I gave, that fraction of a percent of DNA may be derived from just one or a handful of Zenu who sailed back out into the Pacific on board Polynesian outrigger canoes. Its a scenario very similar to the Book of Mormon. But autosomal DNA detected the small amount of ancestry very easily and conclusively. I asked the author of the paper if they knew how many Zenu founders brought the DNA. He told me they don't have enough genomic DNA sequence to be able to answer that question conclusively. There was so little Zenu DNA they would need to sequence the DNA of several thousand more Polynesians from the islands with 4% Zenu DNA to figure out how many founders came across.canpakes wrote: ↑Sat Sep 12, 2026 4:27 amAnd this is what brought me to ask this question. If DNA is being ‘replaced’, what does that process look like? I assumed that this was the action of reproducing within a large enough pool of individuals to end up seeing DNA from any given individual eventually being booted, for lack of a better way to put it. Which means that the Church presumably claims that all of the 3 early Mormon civilizations were so completely extinguished as to not be able to keep adding any DNA to the population pool. Hence the switch years ago regarding the origination claim about Native Americans, and Perego’s bind of trying to make this DNA question work somehow.
If Lehi's descendants intermarried with Native Americans they would pass Middle Eastern DNA to their offspring. Over the generations Middle Eastern DNA would spread further and further into the indigenous population. This spread of DNA would act to preserve Lehi's signal. Unless Middle Eastern DNA caused a higher rate of death in the population (extremely unlikely), it would be preserved in the local population.
It's pretty hard to argue for DNA extinction when the descendants of Lehi led massive New World civilisations for 1000 years. And this same weak argument must also be applied to the Jaredites and Mulekites.
What would be the odds of a group of Middle Easterners (1) sailing half way around the world, (2) building a major civilisation and mixing with local populations and then (2) their DNA going completely extinct? There has been no comparable migration, colonisation and extinction event in the history of the world. Lets assume the odds of this event occurring were 1 in 1000. I think that's being extremely generous. The odds of this happening three times would be 1 in 1000 x 1000 x 1000. Or 1 chance in 1 billion. And that's being extremely generous.