Genes play an important role in shaping what we are today and for all our so-called genetic traits. The genetic information of parents is passed down to their children, grand children, or even great grand children. Similarly we have also inherited a number of genetic traits from our ancestors. All our physical characteristics, personality traits, and talents can be the result of the genetic make up of our ancestors.

We have 23 pairs of chromosomes in almost every cell in our body. Each pair consists of a chromosome from our mother and a chromosome from our father. The chromosomes carry genes, which are the segments of DNA that

Genetic diseases are surely one of the most dangerous factors for human?s health. These disorders are due to abnormalitites in genetic material (also known as genome) of humans. Genetic diseases are categorized in four main types according to where does the disorder happens.

The four types of Genetic disorders are:
1) Single-gene/monogenic Genetic Diseases: In this type of genetic diseases the abnormality happens in one gene. To be more specific, the starting point is a mutation in a single gene. This

Apert Syndrome is a dominant genetic disorder occurring when a fetus inherits an abnormal gene from a parent suffering from the disease. The disease is also capable of occurring through sporadic mutation of genes (i.e. there is no family history of the disease).

The presence of the mutated gene causes an alteration in the structure of the fibroblast growth factor receptor two proteins. This protein acts to signal immature cells, causing them to develop into bone cells in embryo and fetus. Alteration in the structure causes the protein to send a prolonged signal, promoting the premature fusing of bones in the head, hands and feet of a fetus.

Ataxia Telangiectasia is a disorder that causes the progressive degeneration of the brain. It is an extremely rare disorder only occurring in one in forty thousand to one in one hundred thousand people.

The disease is an autosomal recessive trait, thus a child must inherit an abnormal gene from both parents in order to develop the disease. There is a twenty five percent chance of this occurring if both parents are carriers of the mutated gene.

The initial symptoms of the disease will generally occur within the first ten years of life and include poor balance, speech difficulties and delayed development of motor skills. In some cases, small red spider veins may also develop around the eyes.