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Topic: Mitochondrial Eve


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In the News (Mon 22 Apr 19)

  
  The Demise of Mitochondrial Eve -- TrueOrigin Archive
This is the idea that the descendants of mitochondrial Eve were the only ones to colonize Africa and the rest of the world, supplanting all other hominid populations in the process.
Mitochondrial Eve is alleged to have lived in Africa at the beginning of the Upper Pleistocene period (between 100,000 and 200,000 years ago).
Mitochondrial DNA (mtDNA) is generally assumed to be inherited exclusively from the mother….
www.trueorigin.org /mitochondrialeve01.asp   (3819 words)

  
 BBC - h2g2 - Mitochondrial Eve - An Explanation - A703199
Mitochondrial Eve represents one of the most poorly understood scientific ideas of the 20th century.
Because the rate of mitochondrial genetic mutation is slow, it can be used as a clock to turn back time to a period before the mutations had crept in.
Eve had many ancestors — it helps if you think about her as an hourglass — she was the pinch in the glass through which our genes ran.
www.bbc.co.uk /dna/h2g2/alabaster/A703199   (1161 words)

  
  Mitochondrial Eve
Mitochondrial Eve is sometimes referred to as African Eve, an ancestor who has been hypothesized on the grounds of fossil as well as DNA evidence.
If the mitochondrial analysis is correct, then because mitochondrial Eve represents the root of the mitochondrial family tree, she must have predated the exodus and lived in Africa.
The mitochondrial DNA of a human being is essentially the same as that of his or her mother.
www.homepages.hetnet.nl /~b1beukema/mitoeve.html   (1650 words)

  
  Encyclopedia :: encyclopedia : Mitochondrial Eve   (Site not responding. Last check: )
Mitochondrial Eve is the name given by researchers to the woman who is the most recent common matrilineal ancestor of all living humans.
Eve was a member of a population of humans thought to be living around 150,000 years ago in Africa.
Mitochondrial Eve is sometimes referred to as African Eve, an ancestor who has been hypothesized on the grounds of fossil as well as DNA evidence.
www.hallencyclopedia.com /Mitochondrial_Eve   (1319 words)

  
 A shrinking date for ‘Eve’
Evolutionists, aware of the way in which the mitochondrial Eve discovery could be seen to have vindicated the Bible, have long countered by saying that their ‘Eve’ lived far too long ago to be the biblical Eve.
Evolutionists have guessed at when their mitochondrial Eve lived via the idea of the ‘molecular clock’—i.e., that there is a more or less fixed rate of mutational substitutions per year in any population.
The mitochondrial Eve findings were, in the first instance, in line with biblically-based expectations; while not proving the biblical Eve, they were consistent with her reality, and were not predicted by evolutionary theory.
www.answersingenesis.org /tj/v12/i1/eve.asp   (1961 words)

  
 Spartanburg SC | GoUpstate.com | Spartanburg Herald-Journal
Mitochondrial Eve (mt-mrca) is the name given by researchers to the woman who is the matrilineal most recent common ancestor (MRCA) for all living humans.
What distinguishes Mitochondrial Eve (and her matrilineal ancestors) from all her female contemporaries is that she has a purely matrilineal line of descent to all humans alive today, whereas all her contemporaries have at least one male in every line of descent.
Since Mitochondrial Eve is believed to have lived in Africa she is sometimes referred to as African Eve, an ancestor who has been hypothesized on the grounds of fossil as well as DNA evidence.
www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=mitochondrial_Eve   (2190 words)

  
 CarlZimmer.com   (Site not responding. Last check: )
Newspaper reports on Wilson’s 1987 paper dubbed this African woman “mitochondrial Eve.” But despite the biblical overtones, she was not the sole female progenitor of all living humans.
Mitochondrial Eve existed alongside thousands of other women in Africa, all of whom had mitochondrial genes of their own.
The men who were alive in mitochondrial Eve’s day carried a number of different versions of the Y chromosome.
www.carlzimmer.com /articles/2001/articles_2001_AdamEve.html   (2229 words)

  
 Eve - Creation 2 - Crystalinks   (Site not responding. Last check: )
Mitochondrial Eve is the name given by researchers to the woman who is the matrilineal most recent common ancestor for all living humans, from whom all mitochondrial DNA (mtDNA) in living humans is descended.
Mitochondrial Eve is the female counterpart of the Y-chromosomal Adam, the patrilinear most recent common ancestor.
The Seven Daughters of Eve is a book by Bryan Sykes that presents the theory of mitochondrial genetics to a general audience.
crystalinks.com /eve2.html   (2121 words)

  
 Paw Creek Ministries Charlotte, NC Churches :: Churches in Charlotte, North Carolina
Almost immediately, evolutionists, aware of the way in which the mitochondrial Eve discovery could be seen to have vindicated the Bible, began to counter the scientific discovery by saying that their ‘Eve’ lived far too long ago to be the biblical Eve.
Evolutionists have guessed at when their mitochondrial Eve lived via the idea of the 'molecular clock'—i.e., that there is a more or less fixed rate of mutational substitutions per year in any population.
The mitochondrial Eve findings are in line with biblically-based expectations; while not proving the biblical Eve, they are consistent with her reality, and were not predicted by evolutionary theory.
www.pawcreek.org /articles_pcm/church_news/eve.htm   (575 words)

  
 Mitochondrial Eve   (Site not responding. Last check: )
Mitochondrial DNA is found outside the nucleus of the cell where there are hundreds of energy producing components called mitochondrial, each of which contain a circular strand of DNA contributed exclusively by the mother.
Evolutionists were unprepared to deal with these ideas and proposed a far fetched explanation about Mitochondrial Eve: Her family somehow spread across the globe and replaced all the other archaic humans who just happened to have failed in their efforts to produce female offspring.
Based on this theory, they were surprised to discover that Mitochondrial Eve existed approximately 250,000 [ET*] years ago, as opposed to their supposed common ancestor who lived some 3 ½ million [ET*] years ago.
www.straight-talk.net /evolution/eve.htm   (347 words)

  
 THE EVE CONTROVERSY, (mitochondrial evolution)
The "Eve" gene would follow approximately the mathematical rules which bacterial genes are subject to (indeed mitochondria probably arose from a symbiosis of an ancient bacteria with eukaryote cells), not rules for nuclear genes, since mitochondria genes do not normally recombine (although they may do so occasionally [Wallis]).
Mitochondrial DNA is poor at predicting the age of a genetic line.
Mishmar, et al, have found that there is a profound difference in sections of the mitochondrial genome from different sections of Asia, and that these differences seem to be related to climate primarily (you must zoom in to this PDF file).
members.tripod.com /~charles_W/eve.html   (2717 words)

  
 NCSU Genetics - Mitochondrial Eve   (Site not responding. Last check: )
This simulation shows how, eventually, the mitochondrial genotype of the entire population traces back to one female - who, in retrospect is called The Mitochondrial Eve.
The mitochondrial genotypes of all of the offspring are shown, but only the number of different female mitochondrial genotypes is presented in the text box named "onumb" and labelled "female mitochondrial genotypes".
The first column is the number of the generation (the parents are the 0th generation) and the second column records the number of different female mitochondrial genotypes in that generation.
www.cals.ncsu.edu /gn/ex/mit-eve-desc.html   (397 words)

  
 Mitochondrial Eve
Eve was in the headlines, Eve entered the textbooks, Eve became a marketing article in science.
The Eve metaphor, however, is grossly misleading, for it invokes the false image of Homo sapiens stemming from a single “mother of us all”, as the headlines proclaimed.
For your battery pack analogy, a mitochondrial gene might work or not work, but it might also work a little bit better or a little bit worse than others, and in either case selection could come into play, although in a small population, selection has to be strong to overcome the effects or random drift.
forum.palanth.com /index.php?topic=95.0   (1702 words)

  
 Mitochondrial Eve Biography from Who2.com
The primary author, Rebecca Cann, called this woman Eve and said she lived in Africa around the year 200,000 B.C. (Carr did not suggest that Mitochondrial Eve was the first human woman -- only that all later humans shared her genetic material.) The theory has been disputed by other scientists and continues to be explored.
Eve takes her name from the Bible's original woman, Eve...
Another genetically interesting Eve was the alleged first human clone, 2002's Baby Eve.
www.who2.com /mitochondrialeve.html   (211 words)

  
 CB621.1: Young mitochondrial Eve
The date of "Mitochondrial Eve," the common maternal ancestor of all humankind, was based on that mutation rate.
This does not apply to mitochondrial Eve research, which is based only on substitution mutation rates.
Mitochondrial genome variation and the origin of modern humans.
www.talkorigins.org /indexcc/CB/CB621_1.html   (324 words)

  
 All about Eve ... - human-evolution - 13 March 1999 - New Scientist
MITOCHONDRIAL Eve, from whom all women are descended, is twice as old as we thought.
Using this clock, biologists were able to estimate that "Eve", the most recent common ancestor of all women, lived in Africa between 100 000 and 200 000 years ago.
The second study, by John Maynard Smith and colleagues at the University of Sussex, focused on mutations in mitochondrial proteins from populations around the world.
www.newscientist.com /channel/being-human/human-evolution/mg16121770.200.html   (603 words)

  
 The Mitochondrial Clock: Is the clock speed faster than we thought? MHRC
Portions of Mitochondrial DNA appears to mutate much faster than expected yet there has been a lot of opposition to this possibility because it goes against the calculated speed of the molecular clock that is based on having chimpanzees and humans diverge 5 million years ago.
Mitochondrial DNA sequence heteroplasmy in the Grand Duke of Russia Georgij Romanov establishes the authenticity of the remains of Tsar Nicholas II.
The nucleotide sequence of the D-loop region of the mitochondrial genome was determined for 45 members of a large matrilineal Leber hereditary optic neuropathy pedigree.
www.mhrc.net /mitochondria.htm   (1649 words)

  
 Mitochondrial Eve Biography (Ancient Human) — Infoplease.com
The primary author, Rebecca Cann, called this woman Eve and said she lived in Africa around the year 200,000 B.C. (Carr did not suggest that Mitochondrial Eve was the first human woman -- only that all later humans shared her genetic material.) The theory has been disputed by other scientists and continues to be explored.
Eve takes her name from the Bible's original woman, Eve...
Eve, in genetics - Eve Eve, in genetics, popular term for a theoretical female ancestor of all living people, also...
www.infoplease.com /biography/var/mitochondrialeve.html   (202 words)

  
 NOVA Online | Neanderthals on Trial | Tracing Ancestry with MtDNA
She was given the name "Eve," which was great for capturing attention, though somewhat misleading, as the name at once brought to mind the biblical Eve, and with it the mistaken notion that the ancestor was the first of our species -- the woman from whom all humankind descended.
Let's get back to "Eve." The ancestor referred to in the 1987 Nature article can be more precisely stated as "the most recent common ancestor through matrilineal descent of all humans living today." In other words, she is the most recent person from whom everyone now living on Earth has inherited his or her mtDNA.
Mitochondrial DNA is extracted from the bones of Neanderthals and compared to the mtDNA of living Homo sapiens.
www.pbs.org /wgbh/nova/neanderthals/mtdna.html   (1816 words)

  
 EXN.ca | History
His discovery challenges the concept of Mitochondrial Eve, the most accepted argument for human evolution among anthropologists.
Mitochondrial Eve is the theoretical African woman who lived 200,000 years ago, and is currently considered the most recent common ancestor of humans today.
Mitochondrial DNA from modern humans had been traced back to too recent an ancestor (Eve) and lacked the variation that would support multi-regional evolution.
www.exn.ca /Stories/2001/04/26/53.asp   (853 words)

  
 Roots for Real - DNA
Since that time, Mitochondrial Eve's descendants have gradually populated the entire globe, with the original founder group spreading geographically and branching genetically in the course of the millennia, leaving genetic footprints - or mutations in their mtDNA - at regular intervals wherever they went.
'Mitochondrial Eve' is most recent common ancestor of all humans alive on Earth today with respect to our matrilineal descent.
The concept of 'Mitochondrial Eve' is in some sense a purely mathematical fact.
www.rootsforreal.com /dna_en.php   (883 words)

  
 Mitochondrial Eve
Due to random sampling, mitochondrial genotypes get "lost", and so the number gradually decreases (irregularly) through the generations, and finally one mitochondrial genotype is "fixed".
Mitochondrial Eve - a "retroactive" name for the most recent female ancestor of all of the species' cytoplasm.
Starting with 10 female parental mitochondrial genotypes (represented by different background colors [D] - the males are gray since their mitochondrial genotypes are not passed on to the next generation) the offpring are produced by randomly sampling uniformly (with replacement) from the parental generation.
www.cals.ncsu.edu /gn/ex/mit-eve.html   (461 words)

  
 Fossil Hominids: mitochondrial DNA
However the Biblical Eve, if she had existed, might well be mitochondrial Eve (though not necessarily: it could be one of her female descendants).
Because of these mutations, human mtDNA has been slowly diverging from the mtDNA of mitochondrial Eve, and the amount of mutation is roughly proportional to the amount of time that has passed.
The value of 24 is highly atypical, because it is taken between the two individuals who have indepently diverged farthest from mitochondrial Eve, and is the maximum of nearly half a million (994 * 993 / 2) comparisons among modern humans.
www.talkorigins.org /faqs/homs/mtDNA.html   (2966 words)

  
 Special: DNA unraveled
Ernster and Luft implicated a defect in mitochondrial energy metabolism and showed that this patient's muscle mitochondria could make only a fraction of the energy they should normally produce; the unconverted fuel was diverted into heat production.
Nevertheless, many symptoms of mitochondrial diseases, such as muscle weakness, diabetes, vision loss, hearing loss, and dementia, are also the hallmarks of aging.
One well-known result of such investigations has been the identification of the "mitochondrial Eve," a hypothetical woman (or, more accurately, group of women) who lived about 200,000 years ago in Africa: the mothers of us all, as everyone today carries the progeny of their mitochondrial DNA.
www.columbia.edu /cu/21stC/issue-1.3/dna-mitoch.html   (1202 words)

  
 Mitochondrial DNA Clarifies Human Evolution by Max Ingman
Mitochondrial DNA -- maternal DNA -- is used to construct evolutionary trees.
One possible reason for this is because these studies have focussed mainly on the polymorphisms in a small section of the mitochondrial genome called the D-loop, which comprises around 7% of the mitochondrial genome.
Although the mitochondrial genome is one of the first genomes to be sequenced in its entirety, it was not until recently that the progression of technology allowed sequences of that length to be obtained with relative ease and a study of any appreciable size using whole genomes was undertaken.
www.actionbioscience.org /evolution/ingman.html   (1599 words)

  
 Le Magazine, February 2005 - Report: Promoting Mitochondrial Health
In fact, some scientists believe current mitochondrial DNA traces back to a single female known as “Mitochondrial Eve” that eventually climbed all the way up the evolutionary ladder to modern humans.
According to the mitochondrial theory of aging, free electrons are generated as a byproduct of aerobic respiration, which is the chain of ATP-producing chemical reactions that occur within the mitochondria.
This is especially significant, because amyloid beta is an insoluble protein fragment that forms plaques and induces cell death in the brains of patients with Alzheimer’s disease.
www.lef.org /magazine/mag2005/feb2005_report_mitochon_01.htm   (1802 words)

  
 Rediscovering Biology - Unit 9 Human Evolution: Animations and Images
After that, there is still some debate between the èMultiregionalî hypothesis and the èOut of Africa,î or èReplacementî hypothesis as to how modern humans came to evolve and populate the globe.
This shows how one female ancestor passed on her mitochondrial DNA to everyone living today.
The diagram illustrates how one line of mitochondrial DNA came to be carried by all living humans, passed down to us through the èMitochondrial Eve.î
www.learner.org /channel/courses/biology/units/humev/images.html   (449 words)

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