PSY355H5 Lecture Notes - Lecture 5: Eye Color, Brca1, Genetic Drift
Document Summary
Haplotype: series of alleles on a single chromosome: group of genes within an organism that are inherited from a single parent. Genetic marker: testable/observable characteristics that you can use to follow linage/co-segregation of phenotype of interest with the marker. Any phenotypical charactersitc dependant on nucleotide sequence (gene) is considered a genetic marker. : your hair colour, height, eye colour etc. Medallion inheritance which is observed when you have a single gene type of inheritance: (but in principle everything is medallion, doesn"t matter if you have one or. 50 genes influencing phenotype, only diff is very difficult to sort out all characteristics when you have 50 genes influencing phenotype: # of loci so small so you can see diff in gene on phenotype. Wrong alleles: eye colour, rec x linked traits are more common in males. This means that clinical symptoms are not always present in individuals who have the disease-causing mutation.
