Almost certainly the vast majority of native English people are a complete mix not only of Saxon and Norman but also Celtic and Scandinavian (Viking), with in the eastern counties a good slosh of medieval Dutch/Flemish, in the south-east a dollop of late 17th-century Huguenot, and in any major town a lot of them would have some 19th-century Irish ancestry. An English person who *isn’t* a mixture of most of these would be a fantastic statistical improbability, if not a downright impossibility.


Yes, most people, if not all, from the British Isles have Angles, Jutes, Celts, Phoenicians, Romans, Normans (Vikings who settled in France), Saxons, French, German, Spaniard, African,Netherlander, etc. 75% of their DNA pre-dates any of these invaders. In addition, 2% – 4% on their DNA stems from the Neandertals.
There are numerous sites that provide such facts; there are the histories of the British Isles (a term I use because it is all inclusive, not a political term, such as U.K. After all, all English have Irish, Scotch, and Welsh ancestry and so forth).
See: http://news.nationalgeographic.com/news/…http://uk.answers.yahoo.com/question/ind…http://www.prospectmagazine.co.uk/2006/1…
This last one is the closest in answering your question: the invaders provided very little of the DNA of the modern Brit (or other islanders).
The first link says that the gene pool of England is less now than formerly.
Who know, without the whole of the English population of Britain being DNA tested, it is impossible to say……………………………..as the majority of people researching ancestry will not get back far enoug to find out….. ie for 99% written records suittable for family history research are not available back to the Norman invasion………………..
Probably both. Short of massive DNA testing, there is probably no way of knowing. Trying to research every family history would be impossible because there simply aren’t the records.
You could put this in the genetics section for more answers, since this is not a genealogy question.