01:447:380 Lecture Notes - Lecture 4: Transferase, Melanin, Eye Color
Document Summary
Inheriting traits is more complicated than what mendel observed. Phenotype of heterozygote is intermediate between phenotypes of different homozygotes. Description phenotype of heterozygote looks like the phenotype of a homozygote. 1 gene - codes for sugar transferase enzyme (adds sugar molecule onto h antigen on surface of all red blood cells. Type ab: i a i b: multiple alleles, any gene may exist in many forms within a population, each individual member of the population only carries two alleles (one on, alleles may form a . (relationship between alleles: example: in unicorns, a single gene with 3 alleles determine tail color. each homologous chromosome) present in the same locus) Gold t pr t pr ; t pr t pn ; t pr t g t pn t pn ; t pn t g t g t g: lethal alleles, found in essential genes, can be dominant or recessive, depending upon the trait.