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48. 1102 Mol Inher 10

48. 1102 Mol Inher 10 - Molecular Basis of Inheritance...

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Location: Wildfire Lounge on Cayuga street, Downtown Ithaca Molecular Basis of Inheritance Genetics and Chromosomes fluorescent DNA probes applied to human chromosomes Mistakes from last lecture. Histones are positively charged. Murray Barr (1908 – 1995), the Canadian medical researcher, was not a woman. Mary Lyon (1925 -), the British geneticist who first suggested that Barr bodies are inactivated X chromosomes, is a woman. Extrachromosomal inheritance Recall the endosymbiotic origin of mitochondria and chloroplasts. They still have DNA, although many genes have been transposed to the nucleus. Only the female gamete carries these organelles, so they are maternally inherited. So you are more like your mother than your father (but not by much). Myoclonic epilepsy in humans is thought to be a mitochondrial disorder Can mitochondria or chloroplasts be grown in culture? Polyploidy Polyploidy in plants is very common, perhaps ubiquitous, and an important factor in evolution, but rare in animals
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