In the link below are the abstracts with links to the papers presented at the International Conference on Creationism 2018 in Pittsburgh, PA July 29-August 1, 2018. Those presenting are professors at Christian colleges, professors already expelled from secular colleges, or professors at secular colleges who (by God’s grace) can’t be expelled. 🙂
A topic I will raise among the population geneticists there (John C. Sanford, Rob Carter, Nathaniel Jeanson, and others) is the issue of heteroplasmy in mtDNA as they are presenting on these topics.
Mature human cells have 100,000 to 600,000 mitochondrion. So how can a cell be mostly homoplasmic yet have mtDNA mutations that are reflected in lineages whereby an individual has a mostly homoplasmic mtDNA that enable us to identify the 7 daughters of Eve (to quote Oxford Geneticist Bryan Sykes).
I would think we would have not-so-discrete-one-or-the other situation but substantially more degrees of heteroplasmy given there are 100,000-600,000 mitochondrion in a cell.
One possible solution that was unwittingly suggested by an NIH grant is that some gametes have only 1-3 mitochonrion by extreme accident, hence we can have an mtDNA change in an lineage.
These issues must be considered when trying to calibrate mtDNA clocks by direct sampling of grandparents and grand children. Also, what is the effect of somatic mutations in the calibration of the clock since we usually sample somatic cells to calibrate the speed of germline mutations of mtDNA. I do not have answers to these questions, so this thread is a place marker for discussion for what I hope to glean at ICC 2018 regarding mtDNA.