spartakis
Member
- Jan 24, 2012
- 224
- 0
- Thread starter
- #41
The articles you keep repeating are dead links. Seems you just keep repeating yourself. Should I do the same?
This is evidence what are you talking about.
And I will not keep repeating the same stories like you keep doing.
What I had posted was evidence that deterioration is occurring. 3 articles all claiming deterioration.
Do you really not understand what I am talking about or just have to deny it?
Mutations with s within this range are neutral enough to accumulate almost freely, but are still deleterious enough to make an impact at the level of the whole genome. In many vertebrates Ne approximately 10(4), while G approximately 10(9), so that the dangerous range includes more than four orders of magnitude. If substitutions at 10% of all nucleotide sites have selection coefficients within this range with the mean 10(-6), an average individual carries approximately 100 lethal equivalents. Some data suggest that a substantial fraction of nucleotides typical to a species may, indeed, be suboptimal. When selection acts on different mutations independently, this implies too high a mutation load. This paradox cannot be resolved by invoking beneficial mutations or environmental fluctuations. Several possible resolutions are considered, including soft selection and synergistic epistasis among very slightly deleterious mutations.
http://www.ncbi.nlm.nih.gov/pubmed/7475094
A neutral theory predicts multigenic aging and increased concentrations of deleterious mutations on the mitochondrial and Y chromosomes.
http://www.ncbi.nlm.nih.gov/pubmed/12208346
Once again, might as well repeat myself since that is what you are doing
And no a beneficial mutation does not prove the genome is improving. Selection works in a limited context. It will select out a very bad gene but a typical deleterious gene is to tiny in its effect. The typical nucleotide in the genome will not be selected. At the mutation rate I posted before, even if selection gets rid of a few percent it will not stop the deterioration of the genome. This is pretty simple to understand .
But a beneficial mutation like I stated is still a copying error, it is rare and needs to be added into the population. At the rate of deterioration I don't think a couple is going to matter or add genes for that matter.
You re posted what I posted about the mutation you claim added a gene, and said there it is a new gene. No it is a mutated protein.
one of the protein's amino acids is replaced with an amino acid cysteine that has a sulfhydryl group. Somehow, this tiny change enables a handful of Italians to possess low HDL levels and remain free of cardiovascular disease.
This is evidence what are you talking about.
And I will not keep repeating the same stories like you keep doing.
What I had posted was evidence that deterioration is occurring. 3 articles all claiming deterioration.
Do you really not understand what I am talking about or just have to deny it?
Mutations with s within this range are neutral enough to accumulate almost freely, but are still deleterious enough to make an impact at the level of the whole genome. In many vertebrates Ne approximately 10(4), while G approximately 10(9), so that the dangerous range includes more than four orders of magnitude. If substitutions at 10% of all nucleotide sites have selection coefficients within this range with the mean 10(-6), an average individual carries approximately 100 lethal equivalents. Some data suggest that a substantial fraction of nucleotides typical to a species may, indeed, be suboptimal. When selection acts on different mutations independently, this implies too high a mutation load. This paradox cannot be resolved by invoking beneficial mutations or environmental fluctuations. Several possible resolutions are considered, including soft selection and synergistic epistasis among very slightly deleterious mutations.
http://www.ncbi.nlm.nih.gov/pubmed/7475094
A neutral theory predicts multigenic aging and increased concentrations of deleterious mutations on the mitochondrial and Y chromosomes.
http://www.ncbi.nlm.nih.gov/pubmed/12208346
Once again, might as well repeat myself since that is what you are doing
And no a beneficial mutation does not prove the genome is improving. Selection works in a limited context. It will select out a very bad gene but a typical deleterious gene is to tiny in its effect. The typical nucleotide in the genome will not be selected. At the mutation rate I posted before, even if selection gets rid of a few percent it will not stop the deterioration of the genome. This is pretty simple to understand .
But a beneficial mutation like I stated is still a copying error, it is rare and needs to be added into the population. At the rate of deterioration I don't think a couple is going to matter or add genes for that matter.
You re posted what I posted about the mutation you claim added a gene, and said there it is a new gene. No it is a mutated protein.
one of the protein's amino acids is replaced with an amino acid cysteine that has a sulfhydryl group. Somehow, this tiny change enables a handful of Italians to possess low HDL levels and remain free of cardiovascular disease.