Race, Ancestry, and Relatedness
1 - 10 of 43 Answers
March 14, 2013:
Does the existence of Mitochondrial Eve mean there was a time on Earth when there was just one woman? Does Y-Adam mean the same thing for men?
March 6, 2013:
I know that a person is 50% related to their mom and 50% related to their dad. My question is whether or not siblings could range from 0-100% related? Is the 50% that people talk about with brothers and sisters just a mean value?
January 9, 2013:
Am I more genetically related to my grandson (my daughter's son) or to my nephew (my full sister's son)?
October 11, 2012:
I read your article on paternal grandmothers sharing more DNA with their granddaughters who are the children of their sons. It made me wonder if granddaughters are likely to share more DNA with their paternal aunts than with maternal aunts.
August 1, 2012:
I am a male. Does my son inherit any genetic material from my mother? Or do I only pass on my Y chromosome (inherited from father intact)?
July 3, 2012:
Would someone from the time of Jesus Christ or Alexander the Great have noticeable genetic differences (from modern humans) to the trained eye? If not, how far back in human history would you have to go before a geneticist would spot those differences?
March 28, 2012:
If people with the same DNA have a child, will it be a clone or will the child be deformed in some way (like in incest)? For instance, what if a sperm and an egg have the same DNA?
December 7, 2011: What are the odds of inheriting no DNA from a great, great, great grandparent?
November 2, 2011:
I have heard that women who have granddaughters from their sons share more than the usual 25% of their DNA. Is this true and why does this happen? I have a granddaughter from my son and wonder if we share more than 25% of our DNA.
September 29, 2011: I have four children with two different fathers that were brothers (one died in a logging accident). If genes are handed down randomly from parents - 1/2 of the mom's and 1/2 of the dad's, I am wondering how genetically similar my older daughter is to her younger siblings as they are to each other. They have exactly the same ancestors on both sides because their fathers are brothers and I'm their mother.
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