ANT100Y1 Lecture Notes - Genetic Drift, Microevolution, Speciation
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ANT100Y1 Full Course Notes
Verified Note
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Document Summary
Speciation, how evolution works on grand scale, & modern synthesis. Genetic basis of inheritance and biological evolution, population genetics, natural selection, & adaptation. Synthesis of single strand of ribonucleic acid (mrna: messenger rna) at unwound section of dna with one of dna strands serving as template. Result: genetic information encoded in dna transferred to rna. mrna carries information into cytoplasm. Translation trna (transfer rna) is information adapter molecule. Direct interface between amino-acid sequence of protein & information in mrna. Acceptor stem where specific amino acid is attached. Anticodon reads information in mrna sequence by base pairing. Any consistent difference in fitness among phenotypically different biological entities. Emphasizes combined action of random mutation, natural selection, genetic drift, & gene flow. System of biological taxonomy based on quantitative analysis of comparative data, used to reconstruct the (assumed) phylogenetic relationships and evolutionary history of groups of organisms.
