- A human is a kind of animal
- Alleles can determine the inherited characteristics of animals
- So, alleles can determine the inherited characteristics of human

- Alleles can determine the inherited characteristics of human
- Blood type is an inherited characteristic
- So, alleles can determine the blood type of human

So, alleles can determine the blood type of human
Q: What type of inheritance controls blood types in humans?
Context:
- Blood type is an inherited characteristic 
- A human is a kind of animal 
- Alleles can determine the inherited characteristics of animals