BIOLOGY 171 Lecture Notes - Lecture 13: Genetic Drift, Introgression, Allele Frequency
31 Oct 2016
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Kingdom animalia: make collagen, multicellular eukaryotes, gastrula stage. Subphylum vertebrata: animals with a skull to protect brain, vertebral column to protect spinal chord. Class mammalia: make milk (mammary glands) and have hair. Order primates: mammals with five grasping fingers on all four limbs, and nails instead of claws. Family hominidae great apes: robust canine teeth. Genus homo: tool use, burial of dead. Two separate bones in forearms and fore legs: allows for greater dexterity. 5 grasping fingers on all four limbs. Eyes on the front of the face (3d vision) 3 main groups of primates: prosimians, bush babies, and lemurs, new world monkeys, old world monkeys, apes. Apes: lesser apes: gibbons, great apes (hominids; hominidae) Robust canine teeth as shared derived trait (sdt) Sdt w/ other extinct hominids: bipedalism: humans did not evolve from chimps. Humans are equally related to bonobos and chimps. 1% difference in mostly non-coding dna between these 3 species.
