Understanding through Discussion


Welcome! You are not logged in. [ Login ]
EvC Forum active members: 85 (8915 total)
Current session began: 
Page Loaded: 07-18-2019 7:53 AM
19 online now:
Admin (Percy), caffeine (2 members, 17 visitors)
Chatting now:  Chat room empty
Newest Member: 4petdinos
Post Volume:
Total: 856,902 Year: 11,938/19,786 Month: 1,719/2,641 Week: 228/708 Day: 3/52 Hour: 1/0


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   All Human Beings Are Descendants of Adam
Dr Adequate
Member
Posts: 16097
Joined: 07-20-2006


Message 4 of 118 (606366)
02-25-2011 6:18 AM
Reply to: Message 1 by Europa
02-25-2011 2:56 AM


The common explanation of the ME is that the human population faced a bottleneck sometime in the past.

No, not really. There was a bottleneck, but that isn't why ME existed.

That's just inevitable. Humans are one species, everyone has a mother, and no-one has more than one mother. Given these facts, one can prove the existence of ME from one's armchair.

People often get confused about this. The fact that ME existed was not news. It was inevitable. The date and location at which she existed was news.

If I was one of those scientists I'd have gotten downright testy about that.


This message is a reply to:
 Message 1 by Europa, posted 02-25-2011 2:56 AM Europa has responded

Replies to this message:
 Message 5 by Europa, posted 02-25-2011 6:51 AM Dr Adequate has responded
 Message 19 by Europa, posted 02-25-2011 9:55 AM Dr Adequate has responded

  
Dr Adequate
Member
Posts: 16097
Joined: 07-20-2006


Message 7 of 118 (606371)
02-25-2011 7:11 AM
Reply to: Message 5 by Europa
02-25-2011 6:51 AM


So you mean evolution does confirm the fact that we are descendants of a single human being?

Common sense confirms the fact that we are all descendants of at least two human beings. As I said, it was not big news that ME existed. She had to.

Common sense also suggests that this is probably true of more than two human beings.

Genetic analysis, IIRC, suggests that "Y-nuclear Adam" and "mitochondrial Eve" didn't live at the same time; which would make reconciling the facts with the Bible kinda tricky.

Edited by Dr Adequate, : No reason given.


This message is a reply to:
 Message 5 by Europa, posted 02-25-2011 6:51 AM Europa has responded

Replies to this message:
 Message 9 by Huntard, posted 02-25-2011 8:36 AM Dr Adequate has not yet responded
 Message 15 by Europa, posted 02-25-2011 9:40 AM Dr Adequate has not yet responded

  
Dr Adequate
Member
Posts: 16097
Joined: 07-20-2006


Message 26 of 118 (606513)
02-25-2011 9:06 PM
Reply to: Message 19 by Europa
02-25-2011 9:55 AM


Is it (theoretically) possible to have two MEs even though we are all a single species?

Mitochondrial Eve is by definition our most recent common ancestor in the female line. There can only be one of those.

This is not to say that you'd have noticed anything special about her at the time. She's unique because she's been carefully defined so as to be unique.


This message is a reply to:
 Message 19 by Europa, posted 02-25-2011 9:55 AM Europa has responded

Replies to this message:
 Message 27 by sfs, posted 02-25-2011 9:16 PM Dr Adequate has not yet responded
 Message 37 by Europa, posted 02-26-2011 10:19 AM Dr Adequate has not yet responded

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2018 by EvC Forum, All Rights Reserved

™ Version 4.0 Beta
Innovative software from Qwixotic © 2019