01:119:115 Lecture Notes - Lecture 1: Chromosome, Lipid Bilayer, Lipid Bilayer Fusion

• School: Rutgers University
• Department: Biological Science
• Course: 01:119:115
• Professor: A Keating

Document Summary

Taxonomy (naming and basic level of classifying of organisms) Binomial nomenclature: using unique two-part name (genus + specific epitaph: rules: latin, italics or underlined, genus is capitalized & abbreviated and is unique, specific epitaph lowercase not unique, ex. Classification arranged to show evolutionary relationships & understand relationships. Systematics (process of classifying organisms, utilizes binomial nomenclature) Hierarchical classification (hierarchy: various levels, each level down is more exclusive), each species at x level shares all characteristics (figure 26. 3) Ca: polytomy (polytomic trees) evolutionary relationships are not clear because of multiple branching. Not good: extant species all species that are currently alive. At tips of branches: homologous traits are due to shared ancestry, analogous result convergent evolution (not due to shared ancestry). Shared purpose but not shared ca: figure 26. 5. Evolution - accumulation of genetic change over time. Changes in allele frequencies in populations not individuals. Mechanisms: natural selection acts on individuals (one has advantage over another) effects variation.