10 Questions
Which blood group phenotype results from the genotype A/B?
AB phenotype
Which gene produces the B antigen in the ABO blood group system?
B allele
Inheritance of which allele results in no antigens (silence gene) and is recessive to A and B?
O allele
How many main phenotypes are there in the ABO blood group system?
4
Where is the ABO gene located?
$9^{th}$ chromosome
Which of the following is the correct description of the ABO blood group system?
It consists of two antigens, A and B, and has 3 alleles: A, B, and O
What is the clinical importance of the ABO blood group system?
It is the most important system in transfusion medicine
Which phenotype results from the genotype O/O in the ABO blood group system?
O
How many blood group systems genes have been identified as of 2021 according to ISBT?
43
Who described the ABO blood group system in 1901?
Karl Landsteiner
Explore the ABO blood group system, including its antigens and genetic identification. Learn about the major blood group systems and their surface markers on red blood cells.
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