Amoeba Sisters
Multiple Alleles (ABO Blood Types) and Punnett Squares
Learn how to set up and solve a genetic problem involving multiple alleles using ABO blood types as an example!
Amoeba Sisters
Mega Genetics Review
Ready to review how to do different types of Mendelian and Non-Mendelian Punnett square problems with The Amoeba Sisters? This video reviews one-trait / monohybrid crosses, two-trait / dihybrid crosses, incomplete dominance, codominance,...
Curated Video
Understanding ABO Blood Groups and Alleles
This video explains the ABO blood group system which is important for blood transfusion compatibility. The video describes the four blood types and how they are determined by the presence or absence of specific markers on red blood...
Curated Video
Alternate Genetic Crosses
“Alternate Genetic Crosses” models incomplete, codominance, and multiple allele genetic crosses in order to determine the genotype and phenotype of the possible offspring.
Visual Learning Systems
Genetics in Action: Codominance
This video builds on the genetic work of Mendel and takes the student through additional genetic discoveries made in the twentieth century. The Law of Segregation and the Law of Independent Assortment are plainly illustrated. The notions...
Amoeba Sisters
Multiple Alleles (ABO Blood Types) and Punnett Squares
Whatever you do in life, always give 100 percent—unless you are donating blood. A video explains how to solve Punnett squares with multiple alleles, in this case blood types. It includes what happens if the wrong type is added, which...