Inheritance of Blood Types: Understanding the Genes Behind Different Blood Types” – A Chapter Analysis of Campbell Biology, 12th Edition

ASSIGNMENT INSTRUCTIONS:

Discuss the different blood types and the genes that control inheritance.
Chapter 14- Book
(Campbell Biology Series) Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca B. Orr, Neil A. Campbell – Campbell Biology, 12th Edition-Pearson (2020).pdf
MLA FORMAT- WORK CITED

HOW TO WORK ON THIS ASSIGNMENT (EXAMPLE ESSAY / DRAFT)

Based on the presence or lack of certain antigens on the surface of red blood cells, blood types are categorized. A, B, AB, and O are the four primary blood types. These blood types differ in their antigen composition, and a group of genes regulates how they are inherited.

The most well-known and often-used system for blood type is the ABO blood group system. Two antigens, A and B, are the cornerstones of the ABO system. On their red blood cells, people with blood type A have the A antigen, while people with blood type B have the B antigen. Both A and B antigens are present in people with blood type AB, whereas neither A nor B antigens are present in those with blood type O.

A set of two genes on chromosome 9 regulate the ABO system. These genes are referred to as ABO genes, and they encode enzymes that modify the surface of red blood cells with certain sugars. A, B, and O are the three subtypes of ABO genes. Blood type A is a result of receiving the A allele from both parents, blood type B is a result of receiving the B allele from both parents, and blood type AB is a result of receiving both the A and B alleles. Blood type O is the result of two O alleles being inherited.

The Rh system, which is based on the presence or absence of the Rh antigen in red blood cells, is another blood grouping system. Rh-positive people are Rh antigen-positive people, whereas Rh-negative people are Rh antigen, negative people. The RhD gene, which is found on chromosome 1, is the only gene in charge of the Rh system.

In conclusion, the presence or lack of particular antigens in red blood cells determines a person’s blood type and a collection of genes regulates how that type is passed down through the family. The most popular blood-typing technique is based on the ABO blood group system, which is managed by ABO genes on chromosome 9. Another blood group system is the Rh system, which is managed by the RhD gene on chromosome 1.

Works Cited: Campbell Biology, 12th ed., Pearson, 2020. Urry, Lisa A., et al.