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Discussion and Debate
Discussion and Debate
Physical & Life Sciences
Creation & Evolution
Evidence for macro-evolution
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<blockquote data-quote="Guy Threepwood" data-source="post: 77675102" data-attributes="member: 423388"><p>The known mechanisms for mutation are the evidence for direction.</p><p></p><p>Because random mutations destroy the specificity of the gene, you can't turn a bacteria into a human being by simply introducing random error.</p><p>You will destroy the organism long before you ever achieve this.</p><p></p><p></p><p></p><p></p><p>As above, mutations which destroy functional information are random/ undirected- this is what we expect mathematically, and what we observe in nature and experimentally. And is also referred to as micro-evolution.</p><p></p><p>The 'mutations' which produced e.g. entire new proteins crucial to macroevolutionary events like the Cambrian explosion- are the exact opposite phenomena, the introduction of vast new volumes of functional information. = macro-evolution, and cannot be explained by mere random errors.</p><p></p><p>In short:</p><p>micro/backward steps are random</p><p>macro/forward steps are not</p><p></p><p>It's a very good analogy & the above applies perfectly.</p><p></p><p>Random deterioration of the car is what we expect and observe through entropy. Parts will wear out and rust gradually/ specified functionality is lost. (micro evolution)</p><p></p><p>But occasionally we see changes in the opposite direction, a brand new part will suddenly appear, providing a brand new function- a transmission with a whole extra gear perhaps. (macro-evolution)</p><p></p><p>You cannot extrapolate the first mechanism to explain the second, they are entirely opposite in direction.</p></blockquote><p></p>
[QUOTE="Guy Threepwood, post: 77675102, member: 423388"] The known mechanisms for mutation are the evidence for direction. Because random mutations destroy the specificity of the gene, you can't turn a bacteria into a human being by simply introducing random error. You will destroy the organism long before you ever achieve this. As above, mutations which destroy functional information are random/ undirected- this is what we expect mathematically, and what we observe in nature and experimentally. And is also referred to as micro-evolution. The 'mutations' which produced e.g. entire new proteins crucial to macroevolutionary events like the Cambrian explosion- are the exact opposite phenomena, the introduction of vast new volumes of functional information. = macro-evolution, and cannot be explained by mere random errors. In short: micro/backward steps are random macro/forward steps are not It's a very good analogy & the above applies perfectly. Random deterioration of the car is what we expect and observe through entropy. Parts will wear out and rust gradually/ specified functionality is lost. (micro evolution) But occasionally we see changes in the opposite direction, a brand new part will suddenly appear, providing a brand new function- a transmission with a whole extra gear perhaps. (macro-evolution) You cannot extrapolate the first mechanism to explain the second, they are entirely opposite in direction. [/QUOTE]
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