Potential phenotypes in the offspring of parents with all possible ABO blood type combinations, assuming heterozygosity whenever possible.

Progeny Phenotypic Ratios

Phenotypes

Genotypes

A

B

AB

O

A x A

IAIA x IAIA

1

     

A x A

IAIA x IAIO

1

     

A x A

IAIO x IAIO

3

   

1

B x B

IBIB x IBIB

 

1

   

B x B

IBIB x IBIO

 

1

   

B x B

IBIO x IBIO

 

3

 

1

O x O

IOIO x IOIO

     

1

AB x AB

IAIB x IAIB

1

1

2

 

A x B

IAIA x IBIB

   

1

 

A x B

IAIO x IBIB

 

1

1

 

A x B

IAIA x IBIO

1

 

1

 

A x B

IAIO x IBIO

1

1

1

1

A x O

IAIA x IOIO

1

     

A x O

IAIO x IOIO

1

   

1

A x AB

IAIA x IAIB

1

 

1

 

A x AB

IAIO x IAIB

2

1

1

 

B x AB

IBIB x IAIB

 

1

1

 

B x AB

IBIO x IAIB

1

2

1

 

AB x O

IAIB x IOIO

1

1

   

 

Text iGenetics by Peter J. Russell

This web site is provided for instruction in Botany and Zoology 342

by Kenneth G. Wilson,
Professor of Botany
Miami University
wilsonkg@muohio.edu