GENE20001 Lecture Notes - Lecture 2: Meiosis, Wild Type, Mendelian Inheritance
28 Jul 2018
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Tue, february 27: principles of genetics (gene20001-gene20001_2018_sm1) 2018_sm1. Continuous traits are a result of many genes and their interaction (also the environment). The peas mendel took into consideration showed discrete traits such as tall and short, yellow and green We now what the dominant phenotype is, by the phenotype of the heterozygote. We know the genotypes of the parents as they have said they are purebreeding. The dominant trait is having the y and the recessive trait is having the y. F1 produces gametes that have the y or the y in equal frequencies. Traits segregate away from each other and there is also independent assortment of alleles. This relates to how chromosomes segregate during meiosis. All the insect species did give us evidence that genes are carried on chromosomes. It was drosophila that actually allowed a direct link to be made. Biggest evidence was made when sex was used as a trait.
