Tuesday, April 14, 2009

Genotype, Phenotype, and Other Fun Types

I thought about the genotype vs. phenotype discussion, and this is what I came up with.  In the evolutionary model, the exact DNA sequence of an organism's genome (its "genotype") doesn't matter as long as the characteristics of the organism (its phenotype) increase its chances of survival.

The thing is,
- How do you know any population has the characteristics needed to survive in a given environment: what if it doesn't, and all life dies out?  Start over from scratch?
- How do you coordinate evolution of sexual reproduction?  How does the timing of male/female evolution coalesce?  What if it doesn't?
- Why is there a spectrum of difficulty in breeding different types of animals?  Wouldn't evolution be much more efficient if this barrier was in place? Why is there this barrier?
- Is man really a product of his environment? Solzhenitsyn in the Gulag tells a different story.

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