BIOLOGY 1A03 Lecture Notes - Lecture 11: Erasmus Darwin, Carl Linnaeus, Selective Breeding

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BIOLOGY 1A03 Full Course Notes
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BIOLOGY 1A03 Full Course Notes
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Base pair substitution: one nitrogenous base is replaced with a different base. Deletions: one or more nitrogenous bases are deleted during the copying process. Insertions: one or more nitrogenous bases are inserted during the copying process. Neutral: mutation that doesn"t result in any selective advantage or disadvantage. Harmful: reduces the reproductive success of an individual and is selected again and does not accumulate over time. Beneficial: favoured by natural selection and accumulate over time. Artificial selection - breeding individuals by selecting them based on their particular trait and it is used to produce new breeds or varieties of plants and animals. Limitations of artificial selection - limited by the genes that are present in the current population. Immutable: all living things had been created in their present form and were not able to change, back to at least aristotle most people believed that. Wondered why anatomical features that seem to serve no purpose existed.

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