What is genetic disease and what are some common genetic disorders?

Genetic diseases are medical conditions that occur as a result of changes or mutations in an individual's DNA. These mutations can cause changes in the normal functioning of certain genes, which can lead to various health problems. Genetic disorders can be inherited from one or both parents or can arise spontaneously due to a new mutation in the individual's DNA.

Genetic diseases are defined as chromosomal diseases, single gene diseases and multifactorial genetic diseases. For example, we can mention chromosomal diseases such as Down Syndrome, single gene diseases such as Thalassemia, Cystic fibrosis and multifactorial genetic diseases such as cancer.