first, let's all agree that we're all descended from one man and one woman and this has been verified.
Some folks get their nose out of joint over the idea of the universe being created in 6 days --you know, the sun coming up and going down days? My take is that Genesis doesn't have the sun created until the fourth day, so how long were those first few days w/o the sun?
Genesis says "In the beginning God created the heaven and the earth." Ask an honest scientist what happened chronologically before the big bang that could make the big bang happen and they should say that there was no "before" that preceded the big bang because that's when time began. Any talk about parallel universes etc are purely unfalsifiable conjecture w/ no scientific observability to confirm or contradict. Also the words "at once" do not appear in the first chapter of Genesis. However, in the second chapter of Genesis there was a second creation of the earth, the heavens, and man (and woman) but once again the words "at once" do not appear.
My point is that just as science teaches many things, the Bible also teaches many things and it's our job to make sense out of everything and consult about it all. However that's my take and I understand that there are other opinions.
Plants growing before sunlight?
Anyway my answer was to the claim "Wait a sec, DNA research world wide has proven that we're all descendants s of one woman and one man." Which is true, but they did not meet there was thousands of years difference between them which sort of contradicts the garden of eden idea doesn't it.