Introduction

Genetics is the study of heredity and how traits are passed down from one generation to another. One of the most fascinating aspects of genetics is the study of blood types. Blood types are determined by the presence or absence of certain antigens on the surface of red blood cells. In humans, there are four major blood types: A, B, AB, and O. In this article, we will be discussing blood type codominance practice problems and their answer key.

What is Codominance?

Codominance is a type of inheritance pattern in which both alleles of a gene are expressed equally in the phenotype of the organism. This means that neither allele is dominant or recessive, and both are expressed in the offspring. In the case of blood types, codominance explains how individuals can have blood types that express both the A and B antigens equally.

Blood Type Codominance Practice Problems

Let’s take a look at some blood type codominance practice problems: 1. If a person with blood type AB marries a person with blood type O, what are the possible blood types of their children? Answer: All of their children will have blood type A or B. None of their children will have blood type AB or O. 2. If a person with blood type A marries a person with blood type B, what are the possible blood types of their children? Answer: Their children could have blood type A, B, AB, or O. 3. If a person with blood type AB marries a person with blood type AB, what are the possible blood types of their children? Answer: All of their children will have blood type AB.

Conclusion

Blood type codominance is a fascinating topic in genetics. Understanding how blood types are inherited can help us better understand our own genetic makeup and that of our children. By practicing blood type codominance problems, we can become more familiar with the inheritance patterns of blood types and how they are passed down from generation to generation.