Blood Types Worksheet printable pdf download

Blood Types Worksheet

Name____________________________

Blood Types

Introduction:

Geneticists probably know more about blood types than any other inherited

human trait. The four basic types are determined by the presence or absence of the A and

B agglutmogens in the red corpuscles. Consider blood types as being determined by a

single pair of genes. Thus type A blood may be homozygous I

or heterozygous I

If you have type B blood you may be homozygous I

or heterozygous I

i. Type O

blood must be homozygous ii and type AB blood is a combination of A and B antigens

with the genotype I

Complete the following charts about blood typing.

Part One:

1. What is the genotype of a parent heterozygous for type A blood? ____________

2. What is the genotype of a blood type AB parent? _____________

3. What genes for blood type may be passed on from the type A parent to its

offspring?______________.

4. What genes for blood type may be passed on from the type AB

parent?____________

5. What gene combinations might be inherited by the offspring?

Type A

Type AB

6. What blood types might the offspring possess?

Blood Types Worksheet