BIS 101 Lecture Notes - Lecture 17: Start Codon, Ploidy, Heritability
16 Dec 2017
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Independent assortment: mutation (accounts for smaller amout) = sometimes you don"t know what it was. Happens in animals, but more in plants fungi wild wheat #1 2a wild wheat #2 2b wild wheat #3 2c 2a2b2c (6n) Chromosome level duplications: aneuploidies trisomic monosomic euploid. Nondisjunction of homologous nondisjunction of homologous chromosomes in meiosis i chromosomes in meiosis ii. Why people say that mendel is dead: why do mendel when you can sequence, you can"t do mendel in 60,000 genes. A mutation in the start codon alters the gene expression: you get rid of the start codon, you get rid of the protein. R (has the gene), r (doesn"t have the gene) R (has the start codon), r (doesn"t have the start codon) dominant recessive example: A / a c / c rr rr. 1 a / a : 2 a / c : 1 c / c 1 rr : 2 rr : 1 rr.
