ANFS300 Lecture Notes - Lecture 2: Heterogametic Sex, Wild Type, Wrinkle
19 Feb 2020
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Document Summary
Genotype: the collection of genes found in either an individual or a population of. Phenotype: the outward manifestation of the genotype. Allele a specific instance of a given gene. Diploid organisms: carry twocopies of every gene (except inthe heterogametic. Dominant trait: expressed if only one allele is required to generate the sex). trait. Recessive trait: only expressed when present in both alleles, or if the other allele is absent. Genes provide the basic blueprint for an organism. The impact of a gene on the organism can be affected by the environment. The impact of a gene on the organism can also be affected by noise. All mice are genetically identical, they differ only in the amount of folate fed their mother. When the element is methylated, the gene is expressed only in the skin, similar to expression of the wildtype allele. Hypomethylation of the element generates an ubiquitously expressed transcript that causes the yellow coat color, obesity and tumors.
