BISC 2 Lecture Notes - Lecture 4: Gregor Mendel, Mendelian Inheritance, Radiation Therapy
Document Summary
Non-disjunction of sex chromosomes: benign tumors, capsule of connective tissue keeps tumor from spreading, malignant tumors, malignant cells can seed new tumors throughout the body. Blended inheritance : tall father + short mother = average-sized kids false. History of genetics: our knowledge of how genetics work is new, but humans have been manipulating inherited traits for hundred of years, farmers select for the best traits in crops and animals, selective breeding. The father of modern genetics" gregor mendel: lives in czech republic, became a friar, studied to become a science teacher, categorized heritable traits in pea plants. Mendel"s observed traits in pea plants: mendel noticed patterns of different inherited traits in pea plants, some traits were seen more than others, some traits would skip generations. True-breeding plants produce offspring identical to themselves: ex: tall/short offspring. Test cross: p1 generation, tall x short, f1 generation, all offspring have the tall characteristic.
