ANTHROP 2E03 Lecture Notes - Lecture 6: Zygosity, Blood Type, Mendelian Inheritance

• School: McMaster University
• Department: Anthropology
• Course: ANTHROP 2E03
• Professor: Andrew Wade

Document Summary

Homozygote: two of the same alleles (mm, nn) When two different alleles are present (heterozygote), there are 3 possibilities to the outcome of phenotype. Dominance: the heterozygote has the same phenotype as one of the homozygotes. Incomplete dominance: the heterozygote has a phenotype different of either of the parent homozygotes (could be a mix of the 2, blue + yellow make green) Co-dominance: when 2 alleles are expressed at the same time (ex. There are instances where there are more than 2 alleles for one gene. Group o: (oo), recessive (needs to be oo or else be dominated by another allele) Group a and b can give to ab, but ab cannot give to a or b. O blood is a universal donor (compatible with all blood types) Ab blood: universal receiver (can receive any type) Xy = hemizygote (only one set of instructions for each gene)