PSYCH 3GG3 Lecture Notes - Lecture 4: Modern Synthesis (20Th Century), Chromosome, X-Inactivation
9 Mar 2020
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You lose the advantage a mutation would give you: a taller tree can compete against shorter trees, sexual reproduction would average the height, giving half the advantage, next gen gets of the advantage. At the same time, mendel was a contemporary of darwin (studied at same time) Distinct heritable traits (yellow or green, tall or short etc. ) Began with purebred parent plants: blended inheritance would"ve given all medium height first generation all came out tall (doesn"t work for blended inheritance) in the next generation, one came out short. Darwin and mendel never found each other"s work, even though they worked at the same time. The modern understanding that mendel"s particulate mechanism of inheritance was the heritable matter that darwin"s theory of natural selection relied upon. evolution by natural selection that gives you complexity. Terminology chromosome a single molecule comprising of a very large dna helix, with a single chromosome containing thousands of genes.
