Ataxia-telangiectasia (A-T) is an autosomal recessive genetic disorder. It is caused by a mutation in the ATM gene, which is responsible for regulating the cell cycle and controlling DNA damage responses. As such, it is inherited in an autosomal recessive fashion, meaning that it is not expressed in the phenotype unless both copies of the gene are mutated.
People with A-T typically have a wide range of symptoms, including difficulty with coordination, telangiectasias (dilated capillaries) in the eyes, increased susceptibility to certain types of cancer, and increased sensitivity to radiation. They also have a higher risk of developing infections due to a weakened immune system.
The disorder is caused by a mutation in the ATM gene and is inherited in an autosomal recessive fashion. This means that the disorder is only expressed in the phenotype if both copies of the gene are mutated. To inherit A-T, both parents must have at least one mutated copy of the gene, and each child has a 25% chance of inheriting the mutated gene from each parent and thus expressing the disorder.
In conclusion, ataxia-telangiectasia is an autosomal recessive genetic disorder, meaning that it is only expressed in the phenotype if both copies of the gene are mutated. In order to inherit the disorder, both parents must have at least one mutated copy of the gene, and each child has a 25% chance of inheriting the mutated gene from each parent.