2019/06/15

Rapid mtDNA mutation rate refutes evolutionary timescales

Phylogenetic studies have substantially underestimated the rate of mtDNA divergence

http://www.dnai.org/teacherguide/pdf/reference_romanovs.pdf

Excerpts: "Evolutionists have assumed that the clock is constant, ticking off mutations every 6000 to 12,000 years or so. But if the clock ticks faster or at different rates at different times, some of the spectacular results--such as dating our ancestors' first journeys into Europe at about 40,000 years ago--may be in question. "We've been treating this like a stopwatch, and I'm concerned that it's as precise as a sun dial," says Neil Howell, a geneticist at the University of Texas Medical Branch in Galveston. "I don't mean to be inflammatory, but I'm concerned that we're pushing this system more than we should."

"The researchers sequenced 610 base pairs of the mtDNA control region in 357 individuals from 134 different families, representing 327 generational events, or times that mothers passed on mtDNA to their offspring. Evolutionary studies led them to expect about one mutation in 600 generations (one every 12,000 years). So they were "stunned" to find 10 base-pair changes, which gave them a rate of one mutation every 40 generations, or one every 800 years. The data were published last year in Nature Genetics, and the rate has held up as the number of families has doubled, Parsons told scientists who gathered at a recent international workshop* on the problem of mtDNA mutation rates."
 
"Regardless of the cause, evolutionists are most concerned about the effect of a faster mutation rate. For example, researchers have calculated that "mitochondrial Eve"--the woman whose mtDNA was ancestral to that in all living people--lived 100,000 to 200,000 years ago in Africa. Using the new clock, she would be a mere 6000 years old."

My comment: True scientific observations about mtDNA mutation rate using close maternal relatives reveal that the mtDNA mutation rate is much higher than phylogenetic studies suggest:

https://www.ncbi.nlm.nih.gov/pubmed/9090380

Excerpt: "We compared DNA sequences of two CR hypervariable segments from close maternal relatives, from 134 independent mtDNA lineages spanning 327 generational events. Ten substitutions were observed, resulting in an empirical rate of 1/33 generations, or 2.5/site/Myr. This is roughly twenty-fold higher than estimates derived from phylogenetic analyses. This disparity cannot be accounted for simply by substitutions at mutational hot spots, suggesting additional factors that produce the discrepancy between very near-term and long-term apparent rates of sequence divergence. The data also indicate that extremely rapid segregation of CR sequence variants between generations is common in humans, with a very small mtDNA bottleneck."

My comment: When using true scientific methods and when observations are made by using concrete samples and data, then everything points to recent creation. What might the implications of observed rapid mtDNA mutations be for studies like this, in which traditional, slow mtDNA mutation rate was used? Suddenly, everything points to Biblical creation.