ABO Cross Example

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Excalidraw Data

Text Elements

Cross of a heterozygous A and het b ind.

Let I represent the co-dominant A blood type allele
Let I represent the co-dominant B blood type allele
Let i represent the recessive O blood type allele

A blood
Type

B blood tupe

Offspring Genotypes

Offspring Genotypes

25%
25%
25%
25%

25% A and B Blood type
25% A Blood Type
25% B Blood type
25% O Blood Type

Identify Organisms of the Cross
Define Variables for the Alleles
Generate Gametes and complete the Punnet Square
Provide Genotype%
Provide Phenotype%

A

B

i

i

I

I

A

B

i

i

I

I

A

B

I

I

I

I

i

i

i

i

A

B

B

i

i

i

I

A

I

I

I

i

A

A

B

B