What is a condition that results from an abnormality in an organism's genes?

A genetic disorder is a condition that arises due to abnormalities in an organism's genes or DNA. These abnormalities can be caused by mutations, deletions, insertions, or duplications of genetic material, leading to various effects on an individual's health and development. Genetic disorders can manifest in numerous ways, from minor physical differences to serious health issues.

While cancer is indeed related to genetic abnormalities, it is more specifically a group of diseases characterized by uncontrolled cell growth that often stems from multiple genetic mutations and environmental factors. Aneuploidy refers to the presence of an abnormal number of chromosomes, which can lead to genetic disorders but is a specific type of chromosomal anomaly, rather than a general term for disorders caused by gene abnormalities. Down syndrome is a specific genetic disorder caused by an extra copy of chromosome 21, categorizing it under the broader umbrella of genetic disorders but not encompassing the general definition. Thus, the term "genetic disorder" is the most accurate representation of a condition resulting from genetic abnormalities.