"In Cold Pursuit" (a mystery set in Antarctica) by Sarah Andrews who, by the way, is a professional geologist and a licensed pilot.
This quote from pg. 291 is a woman scientist that the main character meets out on the ice while investigating two unusual deaths:
"There is no such thing as race. All research done in the past half century has said the same thing: We are all one race with only minor variations, but the mixing is spread all across the globe, the result of constant intermarriage, not just this tribe splitting off from that .
[Perhaps] you've heard about mitochondrial Eve? Each woman on this planet, including you and me, carries the same genetic coding in our mitochondria, with only minor, minor variations that have built up over the millenia. In a manner of speaking, we are all daughters of one ancient mother. We all carry her heritage. We are sisters."
