(Institute for Creation Research) A recently published study in the epigenetic modification of DNA regions similar among humans and three different apes not only provided a completely mixed up picture of evolution, but one that was entirely backwards.1
Epigenetic modifications are chemical tags that are added along chromosomes in specific patterns that control how genes are expressed. At present, 12 different types of gene regulating modifications (i.e., chemical tagging) to histone proteins that package the DNA molecule are well-documented in the human genome.2 In addition to the modification of histones, the DNA molecule itself can be tagged by methyl groups on the cytosine nucleotide bases. Thus, the combinatorial epigenetic code is exceedingly complex, but key to understanding how the genome works.
While the DNA code is closely similar in all cells throughout the human body, the epigenetic code and its patterns vary depending on cell and tissue type.2 Because these epigenetic patterns control how genes are expressed in the cell, evolutionists have been interested in comparing the patterns between humans and apes to check for commonalities and dissimilarities. Interestingly, a comparative epigenetic study just published by evolutionary scientists completely contradicts the standard, inferred evolutionary tree for human-ape evolution.