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Cave Bear Hypothesis Essay

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Cave Bear Hypothesis Essay
* Proteins were originally thought to be the molecule of heredity because they were more complex than DNA, were very present, and DNA was only found on chromosomes * * S type → dead mouse * R type → healthy mouse * S type (heat killed) → healthy mouse→ no S cells isolated from mouse * S type (heat killed) plus R → dead mouse

* S type → dead mouse * R type → healthy mouse * S type (heat killed) → healthy mouse→ no S cells isolated from mouse * S type (heat killed) plus R → dead mouse

Three key genetic experiments: 1. Griffith (1928) – streptococcus and mice * Conclusion: something in dead S cells forced R cells to transform, but transformative …show more content…
the gene pool) * Populations evolve through changes in their gene pools, meaning that population genetics is essentially a study of evolution * There are 4 major evolutionary forces:
1. Mutation
2. Migration
3. Inbreeding/genetic drift
4. Selection * Describing population genetic variation: * Genotype frequencies – [N = total samples] f(AA) = # AA/N f(Aa) = # Aa/N f(aa) = #
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