ABO ADVANCED FORMULAS FINAL PAPER Questions with
Correct Answers (Grade A+)
Question 1: Chromosomes ____ and ____ are associated with the production of Rh antigens.
Answer: #1 and 6
Question 2: True or false: The presence or absence of A,B and H antigens are controlled by H and ABO
gene.
Answer: True
Question 3: ABH antigens on the RBC membrane are controlled by the _____ gene.
Answer: H
Question 4: ABH antigens on secretions (soluble) is indirectly controlled by the _____ gene.
Answer: Se
Question 5: What does the H gene code for?
Answer: an enzyme transferase, alpha-2-L fucosyltransferase, which codes for the L-fucose terminal sugar.
Question 6: The H antigen precursor on on the RBC membrane is composed of which four sugars?
Answer:
1. D- galactose x 2
2. L- fucose
3. N-acetyl -D galactosamine
Question 7: What terminal sugar is added onto the H antigen precursor to form the B antigen?
Answer: D- galactose
Question 8: Which terminal sugar is added onto the H antigen precursor to form the A antigen?
Answer: N- acetyl-D galactosamine
Question 9: The blood type of a child is (AO, AB, BO, OO) can be predicted using a concept known as
_________ _________.
Answer: Mendelian inheritance
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Correct Answers (Grade A+)
Question 1: Chromosomes ____ and ____ are associated with the production of Rh antigens.
Answer: #1 and 6
Question 2: True or false: The presence or absence of A,B and H antigens are controlled by H and ABO
gene.
Answer: True
Question 3: ABH antigens on the RBC membrane are controlled by the _____ gene.
Answer: H
Question 4: ABH antigens on secretions (soluble) is indirectly controlled by the _____ gene.
Answer: Se
Question 5: What does the H gene code for?
Answer: an enzyme transferase, alpha-2-L fucosyltransferase, which codes for the L-fucose terminal sugar.
Question 6: The H antigen precursor on on the RBC membrane is composed of which four sugars?
Answer:
1. D- galactose x 2
2. L- fucose
3. N-acetyl -D galactosamine
Question 7: What terminal sugar is added onto the H antigen precursor to form the B antigen?
Answer: D- galactose
Question 8: Which terminal sugar is added onto the H antigen precursor to form the A antigen?
Answer: N- acetyl-D galactosamine
Question 9: The blood type of a child is (AO, AB, BO, OO) can be predicted using a concept known as
_________ _________.
Answer: Mendelian inheritance
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