Genetic Disorders: A genetic disorder is a medical condition caused by an alteration or mutation in one or more genes, which can lead to abnormal development or functioning of the body. These disorders can be inherited from one or both parents or may arise spontaneously due to changes in genetic material. Genetic disorders can vary widely in their severity, symptoms, and impact on health, depending on the specific genes involved and the nature of the mutations. 

In this unit, we will explore various aspects of genetic disorders, including:

• Chromosomal Disorder : Conditions caused by abnormalities in chromosome number or structure, such as Down syndrome.

• Single Gene Disorder: Diseases resulting from mutations in a single gene, like cystic fibrosis and sickle cell anemia.

• X-Linked Gene Disorder or X-Linked Inheritance: Disorders linked to genes on the X chromosome, affecting traits passed from parents to offspring, such as hemophilia.

• Diabetes Mellitus-Genetic Basis: Understanding the genetic factors contributing to diabetes, including both Type 1 and Type 2 diabetes.

Through this unit, we aim to deepen our understanding of the genetic mechanisms underlying various disorders and their modes of inheritance.