BIOB51H3 Lecture Notes - Lecture 4: Basilosaurus, Microevolution, Chromosome
2 Feb 2018
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Homology: when two types of organism have similar characteristics and traits: there are two types, structural homology: for example, the vertebrate forelimb, vestigial structures, don"t serve a function in one lineage but do in another. Developmental homology: organisms that are now classified together have similar embryonic stages, although they have different adult forms. Molecular homology: humans have a universal genetic code, some more codes are possible and could possibly produce less errors, this could remove the risks of viruses that come from other species. Evidence suggests: extensive similarity as predicted by descent with modification, homologous: traits found in different species that are similar because they have been inherited from a common ancestor. Microevolution: evolution of brassica rapa, the flowering time is in accordance to a drought, the flowering time for the plants has changed over 7 years due to the absence of a drought.
