In this continuing series of examination of the theory (religious belief) of common ancestry, i will look at natural selection. Human breeding is also included in this inquiry.
Breeding and natural selection is the process of 'selecting' traits that are desirable, and deselecting those that aren't. Most of us grew up with the image of light colored moths, in preindustrial England, evolving into dark colored moths, as coal soot from the industrialists choked the planet with fossil fuel emissions.
What do we observe, regarding genetic diversity in an organism?
1. Lower levels of diversity tend to spell extinction of a particular haplogroup.
2. As the tips of a haplotree extend, the diversity decreases.
3. Some low diversity organisms, like sharks and cockroaches, continue for extended generations, with mimimal changes in their levels of diversity.
4. There is no evidence, of increasing genetic information, in ANY isolated haplogroup. They either have the traits needed to survive, or they don't.
This from a study about cats:
The data can help scientists monitor genetic diversity and aid in conservation efforts, Waits says. Snow leopards have low levels of genetic diversity, the researchers found, nearly half that of the other big cat species. Low genetic diversity can be a sign that a species is heading toward extinction.
Cats in general have low levels of diversity, says Marcella Kelly, a population ecologist at Virginia Tech. “I get more worried if an animal has lost diversity recently,” she says. The researchers have DNA of only one snow leopard, so they don’t know whether the animals naturally have low levels or if their genetic diversity has taken a dive.
Tiger, lion and domestic cat genes not so different | Science News
How do you even get 'low levels of diversity', if an organism is constantly creating new genetic information? If the assumptions of common descent were true, there would be new traits and variation constantly added, and haplogroups becoming more diverse, instead of less.
Natural selection and breeding, are DEVOLUTION processes.. the organism is becoming LESS diverse, genetically, with fewer traits to pick from, in their lottery picks of genes.
Natural selection is evidence AGAINST common ancestry, and does not provide any evidence that it can or did happen.
This point is critical evidence against the theory of universal common ancestry.
How can organisms 'advance' into more complexity, if they are in reality, 'devolving', and decreasing in variability?
How do you reconcile the OBSERVABLE reality of fewer traits being available, in a 'low diversity' organism, with the belief that they are constantly adding new traits, genes, chromosomes, etc? How could common ancestry be possible, when organisms DECREASE in variability, through natural or man made selection?
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