On Tue, 4 Apr 2023 21:51:59 -0700 (PDT), JTEM is my hero
<
jte...@gmail.com> wrote:
>jillery wrote:
>
>
>> <
https://en.wikipedia.org/wiki/Chimpanzee%E2%80%93human_last_common_ancestor>
<citation restored>
*****************************************
While "original divergence" between populations may have occurred as
early as 13 million years ago (Miocene), hybridization may have been
ongoing until as recently as 4 million years ago (Pliocene).
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>I LOVE IT! Typical of Wiki uselessness and the mindless contradictions of
>usenet (f)Lame warriors: "There's no fossils, but the fossils prove it!"
Since you don't like Wiki cites, cite something you do like, assuming
you know how.
>: the fossil evidence is now fully compatible with older chimpanzee–human
>: divergence dates [7 to 10 Ma...
>
>WHAT fossil evidence?
>
>Show us.
You show your complete disregard for citations. So to quote someone
you regard so highly, "Google it for yourself."
<citation restored>
<
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3757997/>
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Due to a combined lack of protective histones, ROS generation in the
inner membrane, and limited repair mechanisms, mtDNA is particularly
susceptible to damage and has a mutation rate estimated to be 10 to 20
times higher than that of nuclear DNA
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>This is an a-prior assumption.
>
>Why believe any such thing, unless you WANT a very old divergence date?
>
>Why? You're religious, pointing to The Gospels of Wiki, written by usenet
>trolls.
As proved by the restored citation, the above is NOT from Wiki.
Once again, since you don't like my cite, cite something you do like,
assuming you know how.
>You don't give a reason, you simply pronounce it.
So what makes your pronouncements any better?
>> So not 6mya and not just mtDNA.
>
>You could just Google it,
Unlike you, I did Google it, and cited it, and quoted it.
>and see that the interwebs are absolutely
>BRISTLING with citations naming the 6 million years. and other
>years, yes, but you being autistic you can't deal with ambiguities.
>
>> Instead, there are multiple lines of
>> evidence providing a broad range of plausible dates.
>
>No. There aren't. That is the point.
So back up your claims, assuming you know how.
>There is "Molecular Dating" alone and it sucks. It's just plain
>wrong. It tends to WAY over exaggerate dates.
Nuclear DNA and mtDNA provide independent lines of evidence, as do
dates of hominin fossils and other paleontological artifacts, for a
date of the LCA between humans and other apes between 4 and 13mya.
>> >It doesn't. It's heavily selected for.
You don't specify your "it".
>> <
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3757997/>
>> **************************************
>> Due to a combined lack of protective histones, ROS generation in the
>> inner membrane, and limited repair mechanisms, mtDNA is particularly
>> susceptible to damage and has a mutation rate estimated to be 10 to 20
>> times higher than that of nuclear DNA
>> ***************************************
>
>Okay. This doesn't address what I said, which is that mtDNA is under
>HEAVY selection, or at least it was in the past.
mtDNA mutation rates are independent of selection, HEAVY or otherwise.
As my cite states, mtDNA mutations are almost always recessive and/or
neutral, and so typically are not selected against. Also, human ova
have 100k-600k mitochondria each, which allows substantial diversity
without affecting functionality.
>You're literally "Arguing" against evolution in your need to contradict.
OTOH you're literally spewing mindless noise in your need to
mindlessly contradict.
>> Also, mutation rates are based on averages of observed data across
>> multiple generations. There is no presumption of a "steady clockwork
>> rate".
>
>You're describing a "Steady" rate, an average.
"average" <> "steady".
>And the fact is that the rate right now is WAY slower than in
>the past, when humans were stretching into new environments.
Cite, assuming you know how.
>We began as a tropical into sub tropics species. We needed
>to evolve to cope with cold climates, and mtDNA was an
>extremely important part of that.
>
>Of course I did lay this all out in my original post, and not one word
>of it registered in your, um, your "Special" mind.
I acknowledge you claimed "all this" in your OP. Apparently baseless
claims prove it in your mind.
>Par for the course.
That's the one thing you got right in this topic.