The
inheritance of ABO group is governed by three allelic gene A, B and O. the A and
B are dominant while the O is recessive. The O gene is called an morph because
it has no protein in the homozygous from (Baker et al, 2001)
inheritance of ABO group is governed by three allelic gene A, B and O. the A and
B are dominant while the O is recessive. The O gene is called an morph because
it has no protein in the homozygous from (Baker et al, 2001)
Laws of Inheritance
of ABO Group
of ABO Group
An
offspring can posses antigen A,B, or both if inherited from one or both
parents, and.
offspring can posses antigen A,B, or both if inherited from one or both
parents, and.
A parent of blood
group AB cannot produce on offspring of group O, likewise O situation where
both parents are group O cannot produce on
AB offspring (Abayomi, 2007) table showing the possible ABO phenotype
offspring
group AB cannot produce on offspring of group O, likewise O situation where
both parents are group O cannot produce on
AB offspring (Abayomi, 2007) table showing the possible ABO phenotype
offspring
Table showing the possible ABO phenotype of
offspring
offspring
|
PHENOTYPE
OF PARENT |
POSSIBLE
PHENOTYPE OF OFFSPRING |
|
O
X O |
O
|
|
O
X A |
O or A
|
|
O
X B |
O or B
|
|
O
X AB |
A or B
|
|
A
X A |
A or O
|
|
A
X B |
A, B, AB or O
|
|
A
X AB |
A,B or AB
|
|
B
X B |
B or O
|
|
B
X AB |
B or AB
|
|
AB
X AB |
A,B or AB
|
Table showing the possible ABO
References
Baker, F.J., Silver, R.E. and Pallister, C.J. (2001):
introduction to medical laboratory technology, 7th ed. Pp. 395-400.
introduction to medical laboratory technology, 7th ed. Pp. 395-400.
Abayomi, A. (2007): A text book for medical
laboratory practice, 1st ed. Pp 209-212, 219.
laboratory practice, 1st ed. Pp 209-212, 219.