Ohio Assessments for Educators (OAE) Special Education Practice Exam

Which of the following best describes Turner's Syndrome?

1. It is characterized by the absence of a Y chromosome

2. It affects both males and females equally

3. It leads to significant height increase in affected individuals

4. It is a rare genetic disorder that affects females

The correct answer is: It is a rare genetic disorder that affects females

Turner's Syndrome is indeed best described as a rare genetic disorder that primarily affects females. This condition arises from a complete or partial absence of one of the two X chromosomes, leading to various developmental and physical characteristics. Girls with Turner's Syndrome typically experience short stature, delayed puberty, and infertility, along with other health issues such as heart defects and certain learning disabilities. The other options do not accurately characterize Turner's Syndrome. The absence of a Y chromosome is relevant to conditions affecting males, but Turner's Syndrome specifically involves anomalies of the X chromosome in females. The assertion that it affects both males and females equally is incorrect; Turner's Syndrome does not occur in males as they have one X and one Y chromosome. Finally, the idea that it leads to significant height increase contradicts the typical presentations associated with Turner's Syndrome, where affected individuals generally have a shorter stature rather than an increase in height.