Let me start by saying that I am not, by any stretch, a Christian, nor do I believe the Adam and Eve story.
That said, I think that not only it is scientifically feesible to have started the human race with two people, but I think it is actually more likely that it DID happen that way in reality rather than seven distinct human being pairs evolving independently around the globe simultaneously to interbreed.
Your question:
No one knows how much after the historical Adam and Eve that the seven different strains developed.
I'd be willing to be that there were a lot more than seven, but many bloodlines died off over the years.
The reason that inbreeding isn't good is that it limits your bloodline's adaptability. If there was a single bloodline to start with, then there is no limiting.
Start out with a single MtDNA strain...
Breed, breed, breed...
Kids move away from home...
Many various factors cause mutations in your offspring and make them more adaptable to their respective environments...
Over many generations, seven distinct MtDNA "roots" evolve, each with their own strengths and weaknesses.
Also, who's to say that the first generations of man were NOT mentally retarded, deformed, diseased? In the first generations of man, how much analytical capacity and foresight was needed to survive? By most scientific accounts, expected lifespan was short and mankind was rife with disease. That certainly jives with genetic disorders.
If those first generations of man interbred, those that bred with others of "poor" genes would die off, and those that bred with others of "good" genes would prosper, eventually causing distinct strains of MtDNA.
This would have taken many many generations.
All in all, I think mankind starting off with two people and having a rocky beginning with an uncertain future, then breeding profusely (quantity over quality) to create MANY offspring over MANY generations is whole hell of a lot more likely than two humans evolving in seven (or more) different parts of the world simultaneously, THEN those fourteen's offspring travelling the world to meet eachother and interbreed (they would have to interbreed or we would have, in effect, the EXACT same scenario as a single Adam and Eve), then their children travelling to interbreed...
No matter how you look at it (unless thousands of people magically sprung-up at the same place and same time and inherently KNEW somehow not to breed with their family members), there was a great deal of inbreeding going on during the dawn of man. There HAD to be.
(edited to fix a typo)
That said, I think that not only it is scientifically feesible to have started the human race with two people, but I think it is actually more likely that it DID happen that way in reality rather than seven distinct human being pairs evolving independently around the globe simultaneously to interbreed.
Your question:
Your answer:TheHeretic said:Everyones midochondrial dna is supposed to orginate to 7 diffent orgins around the world. Unless there were 7 differnt adam and eves how is this possible.
Human beings evolved and were subject to genetic mutations (i.e. altered DNA). That would easily account for multiple MtDNA strains.TheHeretic said:Also what about genetic mutation.
No one knows how much after the historical Adam and Eve that the seven different strains developed.
I'd be willing to be that there were a lot more than seven, but many bloodlines died off over the years.
First of all, genetic mutations do not seem to be a direct effect of breeding. Rather, it is the "amplification" of bad genes that cause deformities and other such problems associated with inbreeding. No one knows how "clean" the DNA of the first man and woman were. If they had no defective genes that would cause disease/deformity, the two offspring wouldn't be likely to suffer from these ailments.TheHeretic said:If adam and eve had children then the entire human race would be dependant on their children having intercourse. Result Genetic mutation. Autism for example. I doubt a generation of autistic children could create great civilizations.
The reason that inbreeding isn't good is that it limits your bloodline's adaptability. If there was a single bloodline to start with, then there is no limiting.
Start out with a single MtDNA strain...
Breed, breed, breed...
Kids move away from home...
Many various factors cause mutations in your offspring and make them more adaptable to their respective environments...
Over many generations, seven distinct MtDNA "roots" evolve, each with their own strengths and weaknesses.
Also, who's to say that the first generations of man were NOT mentally retarded, deformed, diseased? In the first generations of man, how much analytical capacity and foresight was needed to survive? By most scientific accounts, expected lifespan was short and mankind was rife with disease. That certainly jives with genetic disorders.
If those first generations of man interbred, those that bred with others of "poor" genes would die off, and those that bred with others of "good" genes would prosper, eventually causing distinct strains of MtDNA.
This would have taken many many generations.
All in all, I think mankind starting off with two people and having a rocky beginning with an uncertain future, then breeding profusely (quantity over quality) to create MANY offspring over MANY generations is whole hell of a lot more likely than two humans evolving in seven (or more) different parts of the world simultaneously, THEN those fourteen's offspring travelling the world to meet eachother and interbreed (they would have to interbreed or we would have, in effect, the EXACT same scenario as a single Adam and Eve), then their children travelling to interbreed...
No matter how you look at it (unless thousands of people magically sprung-up at the same place and same time and inherently KNEW somehow not to breed with their family members), there was a great deal of inbreeding going on during the dawn of man. There HAD to be.
(edited to fix a typo)
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