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Author Topic:   Question concerning evolution
PaulK
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Joined: 01-10-2003
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Message 8 of 21 (834787)
06-12-2018 2:50 AM
Reply to: Message 1 by GDR
06-10-2018 6:06 PM


There is one important point that needs consideration.
They used mitochondrial DNA instead of nuclear DNA. Nuclear DNA is inherited from both parents through recombination, mitochondrial DNA is inherited only from the mother.
Thus in mitochondrial DNA the diversifying effect of mutation is countered by the homogenising effect of matrilineal lineages dying out (a female who only has male offspring cannot pass on mitochondrial DNA but will pass on nuclear DNA). This is the effect that causes a mitochondrial Eve
(Note that this paper is pretty bad news for Faith. All variation in human mitochondrial DNA would have to be mutation since the creation of Eve.)

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PaulK
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Posts: 17825
Joined: 01-10-2003
Member Rating: 2.2


Message 10 of 21 (834790)
06-12-2018 3:17 AM
Reply to: Message 9 by Faith
06-12-2018 2:57 AM


So you have no problem with Eve living at LEAST 100,000 years ago ?

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 Message 11 by Faith, posted 06-12-2018 3:27 AM PaulK has replied

  
PaulK
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Posts: 17825
Joined: 01-10-2003
Member Rating: 2.2


Message 13 of 21 (834795)
06-12-2018 3:33 AM
Reply to: Message 11 by Faith
06-12-2018 3:27 AM


That’s simple enough. The more variation the more mutations must have occurred. Are you proposing that mutations to this section of DNA occurred at 10 times the expected rate ? At an absolute minimum ?

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