close
test_template

4 Major Types of Blood: A, B, Ab, and O

Human-Written
download print

About this sample

About this sample

close
Human-Written

Words: 430 |

Page: 1|

3 min read

Published: Jan 15, 2019

Words: 430|Page: 1|3 min read

Published: Jan 15, 2019

There are 4 major types of blood A, B, AB, and O. What blood you have depends on what antigen is on red cells and what antibody in the plasma; more on that later. Blood type is hereditary and which one you have, depends on your parents. If both parents have A blood type, the child will most likely have an A blood type as well. Similarly, B and B-type parents will produce offspring with B-type blood. However, if one parent is A-type and the other B-type, the child will be AB-type. Okay that’s all quite simple, but things get trickier when we introduce the O blood type. A and B blood types are dominant genes, or “alleles” to be more precise. Whereas the allele responsible for O blood type in recessive.

This means if one parent has an O blood type and the other parent has either an A or B blood type, then the child is most likely to have either an A or B blood type. In order for someone to have an O blood type, both their parents have to have O blood types too. Making O blood types extremely rare because O blood type is recessive unlike its A and B counterparts. Now back to what i was talking about earlier, for example: A blood type will have A antigens on the blood cell and have B antibody in the plasma, same goes with B blood type. However; AB blood types will have neither A nor B antigens on red cells and both A and B antibody are in the plasma.

Finally O blood type has neither A nor B antigens on red cells however both A and B antibody are in the plasma. So up to now we have four blood types, A, B, AB and O. However, there are actually eight blood types, at least within the ABO system. Those are A+, A-, B+, B-, AB+, AB-, O+ and O-. So where do the positives and negatives come from. It comes from a third type of antigen, called the Rh factor. Your blood cells either have the Rh factor antigens or they don’t. If the Rh factor antigens are present, then you have a positive blood type, if they’re not present you have a negative blood type. Rh negative blood may be given to patients with either Rh negative or Rh positive blood types, providing their primary A, B or O blood type matches, as we talked about previously. However Rh positive blood will only be accepted by someone who also has Rh positive blood.

Image of Alex Wood
This essay was reviewed by
Alex Wood

Cite this Essay

4 Major Types of Blood: A, B, Ab, and O. (2019, January 15). GradesFixer. Retrieved November 13, 2024, from https://gradesfixer.com/free-essay-examples/4-major-types-of-blood-a-b-ab-and-o/
“4 Major Types of Blood: A, B, Ab, and O.” GradesFixer, 15 Jan. 2019, gradesfixer.com/free-essay-examples/4-major-types-of-blood-a-b-ab-and-o/
4 Major Types of Blood: A, B, Ab, and O. [online]. Available at: <https://gradesfixer.com/free-essay-examples/4-major-types-of-blood-a-b-ab-and-o/> [Accessed 13 Nov. 2024].
4 Major Types of Blood: A, B, Ab, and O [Internet]. GradesFixer. 2019 Jan 15 [cited 2024 Nov 13]. Available from: https://gradesfixer.com/free-essay-examples/4-major-types-of-blood-a-b-ab-and-o/
copy
Keep in mind: This sample was shared by another student.
  • 450+ experts on 30 subjects ready to help
  • Custom essay delivered in as few as 3 hours
Write my essay

Still can’t find what you need?

Browse our vast selection of original essay samples, each expertly formatted and styled

close

Where do you want us to send this sample?

    By clicking “Continue”, you agree to our terms of service and privacy policy.

    close

    Be careful. This essay is not unique

    This essay was donated by a student and is likely to have been used and submitted before

    Download this Sample

    Free samples may contain mistakes and not unique parts

    close

    Sorry, we could not paraphrase this essay. Our professional writers can rewrite it and get you a unique paper.

    close

    Thanks!

    Please check your inbox.

    We can write you a custom essay that will follow your exact instructions and meet the deadlines. Let's fix your grades together!

    clock-banner-side

    Get Your
    Personalized Essay in 3 Hours or Less!

    exit-popup-close
    We can help you get a better grade and deliver your task on time!
    • Instructions Followed To The Letter
    • Deadlines Met At Every Stage
    • Unique And Plagiarism Free
    Order your paper now