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re: Missouri Bill Would Warn Parents of Evolution Boogeyman
Posted on 2/22/14 at 3:45 pm to Roger Klarvin
Posted on 2/22/14 at 3:45 pm to Roger Klarvin
quote:Total bullshite.
If orphan genes didnt exist, evolution could not occur.
Regardless, the same observation applies.
Our genome mapping across species is in its infancy
Posted on 2/22/14 at 3:54 pm to NC_Tigah
quote:
Total bullshite.
Your lack of understanding is staggering.
If the only way new genetic information could be added was through mutation of existing functional genes, evolution could not occur. It is only in combination with gene duplication and subsequent mutation in those genes (which is how orphan genes are created) that mutations allow for evolution to be possible.
It goes like this: Species A has a gene it requires for function which is then duplicated by complex molecular processes in a sect of that species in the process of speciation. That sect then has "more" genetic info not present in Species A as a whole. The duplicated gene then mutates to become functional in a different way apart from the original gene and serves a purpose in the subsect of species A. Things like this happen many times over many generations until we have a new species B unable to breed anymore with A. Upon genetic analysis, the now functional gene that was originally a duplication product is not present in Species A or any other species and would often be impossible to connect to Species A because of extensive mutation. In the process of other species evolving from B, this mutation is lost or rendered nonfunctional and is not present in species which speciate from it.
The same process can occur without duplication and merely the mutation of existing nonfunctional genes.
Every species on the planet has at least a few unique genes because of this.
This post was edited on 2/22/14 at 3:57 pm
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