Blood Type Codominance Practice Problems Worksheet Template printable pdf download

Blood Type Codominance Practice Problems Worksheet Template

Blood Type Codominance Practice Problems

Human blood types are determined by genes that follow the CODOMINANCE pattern of inheritance. There are

two equally dominant alleles (A and B) and one recessive allele (O).

1. Fill in the following chart with the missing information.

Blood Type

Possible Genotype(s)

Can donate blood to:

Can receive blood from:

(Phenotype)

(“universal donor”)

(“universal recipient”)

O , A

AB , B

2. Write the genotype for each person, based on the given description.

Homozygous for Type B Blood __________

Heterozygous for Type A Blood __________

Type O Blood __________

Type A Blood and had a parent with Type O Blood __________

Type AB Blood __________

Blood can be given to any individual __________

Heterozygous for Type B Blood __________

Homozygous for Type A Blood __________

Can only receive blood from a Type O donor __________

3. A father is heterozygous for his type B blood (BO) and the mother has

type O blood.

a. What are the possible blood types of the babies born from this

couple?

4. A father has type AB blood and the mother has type O blood.

a. What percentage of their offspring would you expect to have…

Type A Blood ______%

Type B Blood ______%

Type AB Blood ______%

Type O Blood ______%

Blood Type Codominance Practice Problems Worksheet Template