What determines blood type?What type of blood antigens are expressed if a person is blood type AB-negative?

Answered: What determines blood type?

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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What determines blood type?
What type of blood antigens are expressed if a person is blood type AB-negative?

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The ABO blood group system is present in human beings. There are four blood groups in the system, namely type A, type B, type AB, and type O. ABO blood group system is one of the best examples of multiple alleles because the ABO blood group system has three alleles for the blood groups. these are the multiple alleles. The allele I^A is dominant over allele I^B, and both alleles I^A and I^Band I are dominant over I^O.
Therefore, the genotype for all four blood groups are as follows:
I^AI^Aor I^AI^O - type A blood group.
I^BI^Bor I^BI^O - type B blood group.
I^AI^B- type AB blood group.
I^OI^O- type O blood group

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