Posted on 02/02/2004 5:58:33 AM PST by Tumbleweed_Connection
I have always been amazed at the ability of the Christian right to bully educators into diluting the teaching of evolution and promoting so-called creation science in public school classrooms. I suspect that part of the reason for this is a misappreciation of the importance of evolution by the general public. Evolution is not an isolated concept that can be expediently omitted from a high-school biology syllabus. Rather, it is the single unifying concept of modern biology. It unites all areas of biology, from ecology to physiology to biochemistry and beyond. Without it, students are denied a framework to understand how these different areas are related and interdependent. Can you imagine asking a physics teacher to cover everything except Newton's laws? Maybe soon a small group of reactionaries will persuade a school board to teach students that apples do not fall to earth because of gravity, but because of some mystical phenomenon that can neither be studied nor understood. ALBERT E. PRICE New Haven, Jan. 30, 2004 The writer is a research fellow, department of cell biology, Yale University School of Medicine.
Again, developmental genes help explain evolution, not the other way around. You can completely understand how and what developmental genes are and have absolutely no concept of evolution. Evolution is not the foundation for known biological processes, but an explaination of how things change. Actually there shouldn't even be a debate on that point, because that is how it is. And everyone is making my point stronger by debating the issue, which was that the importance of evolution is overstated in Biology.
I guess I wonder what degrees you have.
The number I seem to recall is 1 in 10 to the -23. The probability that spontaneous evolution might occur is lower.
ML/NJ
The important part is that in an astronomical number of observations, rocks have never been observed to fall up(except by the inebriated) and that evolution is consistent with observations and understanding. A sudden creation in final form is not.
" what degrees you have.
I'm a chicken farmer.
This is nothing more than attempted proof by repeated assertion. In fact, the mammalian Hox genes are found in several families, each of which is related to a single Hox gene in tunicates. The only reasonable explanation of this is gene duplication in the early mammalian line followed by divergent evolution of the duplicated genes. In other words, evolution explains why the Hox genes have the sequences they have and are clustered the way they are. And of course, the sequence and even the clustering affects how they operate. .
You can completely understand how and what developmental genes are and have absolutely no concept of evolution. Evolution is not the foundation for known biological processes, but an explaination of how things change. Actually there shouldn't even be a debate on that point, because that is how it is.
I agree there shouldn't be a debate on the point, because anyone who'd informed himself on the relationships between Hox genes would not be trying to make the point you're trying to make.
http://www.eurekalert.org/pub_releases/2002-12/dgi-ssd120902.php
http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12620122&dopt=Abstract
http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10996074&dopt=Abstract
Again your logic is backwards. Hox genes help explain how micro-evolution happens and how macro-evolution might happen. I could very well understand Hox genes without any knowledge of the bigger picture, just like I could understand calculus without understanding wave theory. Calculus is necessary to understand wave theory, but wave theory is not necessary for calculus.
There is no reasonable scientific distinction between 'microevolution' and 'macroevolution'. And even a creationist does not argue that the divergence of humans and tunicates from a common ancestor is 'microevolution'.
Hox genes are a phenomenon. Evolution is an explanatory theory. Simple cause and effect forbids one from saying a phenomenon explains a theory. What's next: rainbows explain refraction? The blue sky explains Rayleigh scattering?
I could very well understand Hox genes without any knowledge of the bigger picture, just like I could understand calculus without understanding wave theory.
Why are there very close sequence similarities between human Hox genes? Why are they more similar to those of whale than they are to those of alligators? Why are they clustered?
Newton's laws are inaccurate. How can they be laws?
I am not sure what you are saying, but it is true that known phenomenons are used to support theory. I can absolutely understand these phenomenons without any knowledge of this theory.
What's next: rainbows explain refraction? The blue sky explains Rayleigh scattering?
Refraction and Rayleigh scattering are mathematical models which help explain how the phenomenons occur. I don't see that same relationship between evolution and hox genes. Evolution theory is the end result of many observable phenomenons. Wave theory is a foundation to understand and model phenomenons. I think though this debate is getting into semantics more than anything. My point is I just think there is a political agenda behind some of the semantics that are used.
For sure. Take a bacterial population, expose it to a new antibiotic, watch as the poipulation gradually changes to detoxify the antibiotic. It's been done several times.
I, for one, don't underestimate the impact of the theory of evolution in social thinking. It's one of the core tenants of the religion of Humanism.
So you've decided to define great scientists as those who agree with you. How convenient.
I wish more people could realize that.
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