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post #6 of (permalink) Old 11-29-2018, 01:43 PM Thread Starter
NAB
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Originally Posted by half_crazy View Post
From my study of the topic, the way evolution through natural selection works there can be no definable 'first couple' of humans. If there were, that would cause a genetic bottleneck.

For example, the Cheetah population was once down to like 18 individuals. This genetic bottleneck resulted in the Cheetah being genetically screwed up and the animals were all so closely related that you could transplant organs from one to another and not have to be concerned about rejection... their DNA is so similar. Nature's 'fix' is that the female Cheetah will mate with several males and the cubs in the litter will have different fathers... this gives back genetic diversity to the Cheetah population.

Even IF there were a 'first couple' it does not coincide with the biblical account since they would have lived a lot longer ago than 10,000 years and they still came to be by descending from lower life forms.

https://www.forbes.com/sites/michael.../#122c113f7cd8


"The idea of humans being reduced to a population of two, who then had to repopulate the planet, has understandably drawn people's attention. But this idea is almost certainly wrong, for a host of reasons.

First, we should always be hesitant about drawing big conclusions from mitochondrial DNA, and especially from a single gene - even if that gene has been examined in hundreds of species. Mitochondrial DNA is only inherited from one's mother, so it necessarily only tells us about the female line. More importantly, because there is so little of it, it often misleads us. When the mitochondrial genome of Neanderthals was sequenced, it showed no sign that humans and Neanderthals had interbred. The interbreeding was only revealed when the Neanderthal nuclear genome was read.

Second, there is no trace in the geological record of any such global event in the last 200,000 years. Any event that slashed populations that significantly would surely have led to a noticeable spike in the extinction rate, and there isn't one. There are of course the extinctions linked to humans, but those occurred at separate times and locations, not simultaneously across the planet."
I'M NOT SURE OF ALL THAT. A brother and sister can have a normal child. Siblings DNA are not exactly the same some closer than others. I read a article about identical triplets that had DNA test. All by the same company at the same time. Their DNA was all different ethnicity was different DNA. So maybe with the right crosses in time you could widen the DNA matches and have or create a normal breading field. I don't know, but I do know that things are proven wrong all the time. The test I referenced said we all started from a single couple.

Riding: 2011 XC
Sold: 2003 Vegas
Totaled: 2003 TC, But it's still on the road.
Sold: 2004 TC
This is Just the list of Victory's. I have also rode and owned Honda's, Kawasaki's, Suzuki's, Harley's. Some old European bike. Can't remember the name. It was a 3 speed and I started riding on a 50cc bike that Sears sold. Some time around 1967. I have had my motorcycle license since 1969.
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