Section 24.4 * We have relatively low genetic variation 0.1%, but size of genome means ~3 million base pairs differ between any 2 people * Only 7% of total genetic variation in humans occurs between races
Sections 27.2-27.4 * Symbiont- an organism that lives in closely evolved association with another species * Endosymbiosis- symbiosis in which one partner live within the other * 27-7 for 2 hypotheses on eukaryotic origin * Protists- organisms having a nucleus but lacking other features specific to plants/animals/fungi * Algae- photosynthetic protists * Protozoa- heterotrophic protists, almost exclusively single-celled * 7 superkingdoms of eukaryotes * Amoebozoa- amoeba-like cells that move/gather food by pseudopodia, slime molds are coenocytic (multiple nuclei within one giant cell) * Archaepastida- 2nd most diverse/conspicuous, photosynthetic, include land plants * Stramenopila- all have unusual flagellum that bears 2 rows stiff hairs, most are phosynthetic, diatoms