Molecular Genetics II

By Robert Sapolsky - Stanford

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Lecture Description

(April 7, 2010) Robert Sapolsky continues his series on molecular genetics in which he discusses domains of mutation and various components of natural selection on a molecular level. He also further assesses gradualism and punctuated equilibrium models of evolution, integrating these theories into an interrelated model of development.

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quick question, when dr robert was talking about stabilizing selection leading to equilibrium and also about positive selection leading to punctuated changes, he mentioned that there would be networks of genes that would be affected by the mutation in just one base pair therefore that mutation is unlikely to occur. But if mutation in the gene is to "SAVE YOU" then evolutionary bottleneck takes place thus changing the functions of the whole organism under the responsibility of that 'saving' mutated gene. my question is, what does dr. sapolsky mean by a gene or a trait that might "SAVE YOU" ? thank you.

free.2.ball@hotmail.com | Jan, 15, 2013 | 1 Vote

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