01:119:116 Midterm: Bio Exam 1
28 Nov 2017
School
Department
Course
Professor
Document Summary
Evolutionary history of a species or group of related species. Domain kingdom phylum class order family genus species. Homologous similar due to shared ancestry. 3 types of diversity are genetic, species and community & ecosystem and adaptation. Sister taxa groups of organisms that share immediate common ancestor. Rooted tree has 1 branch point that represents the most recent common ancestor of all. Basal taxon most ancient common ancestor. Extant species currently alive, at tips. Very small 20 to 300 nm. Viruses in multicellular eukaryotes limited to particular tissue. Specificity entirely reliant on host cell to provide resources. Interaction between viral surface proteins + specific receptor molecules on or outside of host cell. 3-100 genes all info needed to replicate in hc. Acquired from moving through host plasma membrane. Virus binds to host cell based on specificity. Viral genome enters host cell injected, endocytosis, plasma membrane fusion. Viral genome directs protein production host cell takeover.
