I am not a scientist, but i need some help on a few questions relating to genetics. If you could help, it would be great.
Can you determine which group of people you come from with DNA? e.g. Are Maltese Italians?
If there are certain frequencies in Y-DNA, would they be the same in mt-DNA? I have seen a study on human races and it was based on Y-DNA. If it indicated the men in that population originated from a certain group of people, surely the women of that population would be the same. Would you get the same results on mt-DNA given it is the same people being tested?
What distinguishes the origins of that population? Is it the base sequences? Or is it the frequency of similar alleles?
How accurate are these DNA tests?
If you test the Y-DNA only, is it enough for the results to be valid? Surely the mt-DNA would not differ much from the Y-DNA.
I am refering to this study: