BIOSC 0150 Lecture Notes - Lecture 33: Coagulation, Blending Inheritance, Metabolic Pathway
17 Apr 2017
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Breaking mendel"s rules part 3: complex allele relationship. Some phenotypes show intermediate character in the heterozygote: incomplete dominance. o. You have to consider what would happen if you crossed the heterozygous. If the r gene codes for an enzyme in the metabolic pathway that causes pigment. Rr makes a lot of pigment rr makes no pigment. Heterozygotes may show both phenotypes = co-dominance: codominance. Heterozygote individual that shows both alleles at the same time. Both phenotypes at the same time: blood types in humans. They refer to the antigens that are found on the surface of the rbc. Types of carbohydrates on the surface: produces gylocotransferase. As the glycoproteins are made and brought to the surface of the rbc, they are tagged with a specific carbohydrate in the golgi. Specific sugars are added (or none are added) Ia, ib, i: genotypes & their phenotypes. O: a & b allele are dominant to i.
