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Talk:Patterns of biological evolution (view source)
Revision as of 02:21, May 25, 2007
, 02:21, May 25, 2007→Additional New Genetic Information: New information IS required
== Additional New Genetic Information==
== Additional New Genetic Information==
This is very misleading. Evolution does not require an addition of new genetic material to occur, a rearrangement of current material can produce drastic results. Let’s look at sickle cell anima for example. Its primary cause is due to a hydrophilic glutamate (Glu) being substituted by the hydrophobic valine (Val), which reduces the solubility of ß-globin. In this case, this mutation causes hemoglobin to form linear polymers linked by the hydrophobic interaction between the valine groups causing sickle-cell deformation of erythrocytes. This mutation is genetically passed between heterozygous carriers and helps to fend off the protozoa that cause malaria. Homozygous carriers tend to have complications due to a reduction of O2 in the blood volume. This is all due to a single point mutation of a codon that switches adenine to uracil during transcription, the DNA has the point mutation of an adenine changing to a thymine. This is not based off of new genetic material but off existing genetic material. The genomic size is the same as before since there was not an addition of nucleotides. Many proponents of evolutionary theory use the "increase of genetic material" argument but it is considered unfounded since complexity is not proportional to genomic size, just the order in which it is arranged.--[[User:Tims|TimS]] 15:08, 24 May 2007 (EDT)
This is very misleading. Evolution does not require an addition of new genetic material to occur, a rearrangement of current material can produce drastic results. Let’s look at sickle cell anima for example. Its primary cause is due to a hydrophilic glutamate (Glu) being substituted by the hydrophobic valine (Val), which reduces the solubility of ß-globin. In this case, this mutation causes hemoglobin to form linear polymers linked by the hydrophobic interaction between the valine groups causing sickle-cell deformation of erythrocytes. This mutation is genetically passed between heterozygous carriers and helps to fend off the protozoa that cause malaria. Homozygous carriers tend to have complications due to a reduction of O2 in the blood volume. This is all due to a single point mutation of a codon that switches adenine to uracil during transcription, the DNA has the point mutation of an adenine changing to a thymine. This is not based off of new genetic material but off existing genetic material. The genomic size is the same as before since there was not an addition of nucleotides. Many proponents of evolutionary theory use the "increase of genetic material" argument but it is considered unfounded since complexity is not proportional to genomic size, just the order in which it is arranged.--[[User:Tims|TimS]] 15:08, 24 May 2007 (EDT)
: Whether or not evolution requires new genetic information is, in a sense, the crux of the whole debate. You ''cannot'' go from the supposed first living cell to the variety of life that we have today ''without'' the addition of new genetic [[information]], so I would argue that evolution most certainly ''does'' require the addition of new genetic information.
: However, that doesn't mean that new genetic information is the only mechanism of change. The question is whether other changes are called "evolution". Evolutionists do call other such changes "evolution", but creationists do not. So who is correct? The creation/evolution debate is not over these other changes, but over the single-cell-to-all-life (or "goo-to-you") changes, and evolutionists describing ''any'' change as "evolution" in order to justify goo-to-you evolution is quite misleading.
: But if there is a specific wording in the article that you think could be better worded, be my guest in changing it, or proposing a specific change.
:[[User:Philip J. Rayment|Philip J. Rayment]] 22:21, 24 May 2007 (EDT)