Evolution and Chanc2

Evolution and Chanc2 - Evolution and Chance The Rules of...

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Evolution and Chance The Rules of Life Some changes to genes involve mixing (say, between parents) according to well-understood principles of population and molecular genetics. Other changes involve chemical processes that interfere with the transcription of DNA to proteins, that cause (again, in accord with the principles of organic chemistry) mistranscriptions either at replication or at conception. Let's call these Replication Rules , the L1 processes of Lewontin's diagram above. "Random" in the sense of there being no causal process that determines the eventual genetic outcome, does not describe any event that occurs at any stage in replication. Once a change has been caused, by whatever process, that change enters into the process of transcribing DNA into a phenotype (the structure of the organism). This is the process of production of the juvenile organism, known in animal biology as ontogeny, or development. [Analogous processes occur in other kingdoms, such as plants, but it does not pay to either be too
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This note was uploaded on 11/14/2011 for the course BIO BSC1010 taught by Professor Gwenhauner during the Fall '10 term at Broward College.

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Evolution and Chanc2 - Evolution and Chance The Rules of...

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