Re: Creationists
Is MUTATION, in all its varieties not a mechanism through which we attain Genetic Variation among a population?
Does mutation not introduce NEW genetic information into a population?
Would the addition of new genetic information not produce enough variation over time to constitute an entirely new species?
As far as turning genes of or on, birds contain genes for teeth, a remnant perhaps of their dinosaur ancestors. Thus the presence of genes, now switched of, demonstrates that there is an evolutionary link between birds and dinos… Similarly, Snakes possess genes for limbs, as do Whales. So this demonstrates a linkage to a limbed ancestor to snakes and whales. So switching of genes does result in speciation.
Correct me if I’m wrong, but switches are controlled by promoter. Promoters lie upstream of regulator genes. The loss of a promoter or a regulator through mutation would mean a loss of a protein. This loss would be passed down the line too ancestors. That snakes have genes for limbs, but those genes are turned off means they lost the promoter segment of their genome and hence those genes remain silent. Or did I miss something?