1. Blood Type AA AO BB BO AB OO A B O
Trait controlled by multiple alleles
Alleles are A, B, and O
Genotype AA AO BB BO AB OO
Phenotype A B O
1. Which alleles are dominant?
A, B over O O
2. Which alleles are recessive?
3. Which alleles are codominant?
A and B

2. A B AB O A B AB O Blood type Can receive from: Blood type
Can donate to:

3. Blood Type Problems
Bob has A type blood and Emily has B blood. Their child has O blood.
Identify the genotypes of all 3 people.
Calculate the probability that Bob and Emily will have a AB child.
Raul has A blood. Raul and his wife Isabel have a child with AB blood.
Identify the possible genotypes of all three

4. Blood Type Problems
Leo has B blood type. His wife Sherri has AB blood. Half of their children have AB blood, and half of their children have B blood.
What is Leo’s genotype?
4. If Leo and Sherri’s child, Roxy, gets in an accident and loses a lot of blood, which parent can donate blood to Roxy, who has AB blood.