ANTH 202 Lecture Notes - Lecture 3: Adenine, Human Skin Color, Ejaculation
28 Apr 2016
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Document Summary
Evolution is a theory that accounts for the diversity and origins of all organisms on earth. It also explains the mechanism by which organisms change. To understand evolution, one must first understand genetics, the science of inheritance, or how physical traits are passed on. Biological understanding of how all living things transmit traits from one generation to the next (genetic transmission). Examples: eye color, hair color, skin color, sex, blood type, diabetes, sickle-cell anemia, etc. Examples: in humans, height is partly inherited and partly determined by the environment (diet). Homosexuality may or may not be inherited (not known). Laws of heredity established by gregor mendel (1865). He bred peas to see how numerous traits (example: tall and short plants) are passed on. Basis of inheritance is the molecule of dna. Dna has a unique two-stranded double helix structure. Dna can make copies of itself when it unzips its structure.
