It is impossible for a type of O+ baby to have a type of____________mother:

A. AB-
B. O-
C. O+
D. none

 

Parent Blood Type Estimate Table:

ABO Blood Type Calculator:

		Father’s Blood Type
		A	B	AB	O
Mother’s Blood Type	A	A or O	A, B, AB, or O	A, B, or AB	A or O	Child’s Blood type Must Be
	B	A, B, AB, or O	B or O	A, B, or AB	B or O
	AB	A, B, or AB	A, B, or AB	A, B, or AB	A or B
	O	A or O	B or O	A or B	O

		Child’s Blood Type
		A	B	AB	O
Mother’s Blood Type	A	A, B, AB, or O	B or AB	B or AB	A, B, or O	Father’s Blood type Must Be
	B	A or AB	A, B, AB or O	A or AB	A, B or O
	AB	A, B, AB or O	A, B, AB, or O	A, B, or AB
	O	A or AB	B or AB		A, B, or O

ABO blood types can be complicated to understand. This is mostly due to the fact that the ‘O-type’ antigen is masked by the presence of an A- or B-type antigen. This is explained in the following chart, showing the different the genotypes that make up the blood types.

Genotype (DNA)	Blood Type
AO or AA	A blood type
AB	AB blood type
BO or BB	B blood type
OO	O blood type

 

For example, two O blood type parents can produce a child with only O blood type. Two parents with A blood type can produce a child with either A or O blood types. Two parents with B blood type can produce a child with either B or O blood type. One parent with A and another with B can produce a child with A, B, AB or O blood types. If one parent has A and another has AB, they can either produce a child with A, B or AB blood types. If one parent has A and another has O, they can either produce a child with A or O blood types.

Correct Answer: AB- ✔

Last Updated: July 24, 2024