BIOL205 Lecture Notes - Lecture 2: Infor, Dna Profiling, Mutation Rate

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Genetics: the study of heredity, genes, and variation of organisms: levels: molecules, cells, individuals, populations, species. When were talking about diseases, traits, behaviors we are talking about a gene, chromosomes: table 1. 1. It"s not required for food products to be labeled if they are made from genetically modified ingredients. Many people disagree with gmo"s but do not know what they are. Dna changes that do not occur normally via mating/recombination. Gm food: plant or animal modified as above. 90% of soy in north america is gmo: health canada/ cfia: Gm: any modification of dna including selective breeding. Genetically engineered: use of biotechnology to make dna changes. How information flows from genetic material to phenotype. Soma: all cells have diploid dna, identical. Germline: gametes have haploid dna, different, eggs and sperm. Nuclear dna: diploid; 2 chromosome sets, different set from each parents. Mitochondrial dna: small circular genome; variable copy number: germline.

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