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Because their descendants, of mutated/new haplogroups were more genetically evolved for life in new geographic regions or new way of life of neolithic. They were more adapted to new environments, therefore they've overpopulated old HGs very quickly. Think natural selection.If "A" is the parent clade of all haplogroups and has been around longer, shouldn't it have the most members? Why isn't "A" the most common haplogroup on earth?
Because their descendants, of mutated/new haplogroups were more genetically evolved for life in new geographic regions or new way of life of neolithic. They were more adapted to new environments, therefore they've overpopulated old HGs very quickly. Think natural selection.
For the same reason we don't have Neanderthals or other homo erectus anymore. We, the new breed of younger haplogroups, are more efficient in finding or producing food, making tools, and adapting to any climatic condition.
If "A" is the parent clade of all haplogroups and has been around longer, shouldn't it have the most members? Why isn't "A" the most common haplogroup on earth?
lets say a tribe of hg A has 5000 males, one of them gets exposed to radiation and his hg become A1. Now the percentage of A1 in the tribe is 1/5000. Now the tribe moved from Africa to Europe. It is very obscure to me how did this percentage turned to 90% or even 50%, in the course of 4000 years, lets say.
If man did not move from where A commenced then the A marker would be much higher ( world population would be lower though)
geographic location of new settlements creates mutations.
Absolutely they do, and happen all the time during cell divisions. However they are most important when they happen during early cell divisions or in egg and sperm cells before creation of new life, therefore one cell mutation can affect the whole new body.I would like to know if one tested 30 years ago and tested again now, would any new mutation occur.
A is the most common haplogroup in the world, especialy A1b, because BT is its subclade. It means that more than 99% of world male population belongs to subclades of A1b.If "A" is the parent clade of all haplogroups and has been around longer, shouldn't it have the most members? Why isn't "A" the most common haplogroup on earth?
You can learn first hand, buy one online. We'll check for your mutations in 30 years.Some of the stuff posted right here is total nonsense. The mutations are caused by uranium what exposure?
That's another way to look at this. Good point.A is the most common haplogroup in the world, especialy A1b, because BT is its subclade. It means that more than 99% of world male population belongs to subclades of A1b.
Y DNA haplogroup tree
Well, sometimes it is just a pure luck involved. For example, if hg A was very popular in England 500 years ago, then by means of industrial revolution, population explosion and GB imperialism, this hg would have been dominant in US, Canada and Australia, and also spread around the whole world.Because population growth in the last millennium made all prior frequencies obsolete.
If you go back far enough the frequency of A would be highest because proto A would have been the only haplogroup.
I don't understand why you would think haplogroup A should have the highest frequency. Your question makes no sense.
I don't understand why you would think haplogroup A should have the highest frequency. Your question makes no sense.
I don't think A should have the highest frequency, I'm just trying to picture how do parent haplogroups disappear. Like R1* for example, there is only a few samples in the world found. It's frequency went to 0.000001% in just 30k years.
I believe that is incorrect. Out of all the R1* people only one of them mutated into R1a and one into R1b. Out of those 2 people come all the R1a and R1b today. R1* was born 25700 years BP and R1b/R1a were born 18500 BP. So I guess the R1 population was fairly small and over 7000 years a lot of mutations happened. And then probably there was a severe bottleneck that wiped out all the R1* and any other child mutations of it except R1a/R1b. I don't know..., that's my scenario.It appears that most of the R1* people mutated into R1a or R1b, which are two very common haplotypes today.
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