Which of the following condition is seen only in females?
**Core Concept**
The question is testing the understanding of a sex-linked genetic disorder that affects females exclusively. This condition is caused by the inheritance of a mutated gene on the X chromosome.
**Why the Correct Answer is Right**
The correct answer is a condition known as Fragile X Syndrome, which is the most common cause of inherited intellectual disability. It is caused by an expansion of the CGG repeat in the FMR1 gene on the X chromosome. In females, who have two X chromosomes, the presence of one normal X chromosome usually compensates for the mutated X chromosome, leading to mild symptoms or no symptoms at all. However, in some cases, the mutated X chromosome can be "inactivated" through the process of X-chromosome inactivation, leading to the expression of symptoms.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because Turner Syndrome is a condition that affects females, but it is not exclusive to females. It is characterized by the presence of only one X chromosome.
**Option B:** This option is incorrect because Klinefelter Syndrome is a condition that affects males, who have an extra X chromosome. It is not exclusive to females.
**Option C:** This option is incorrect because Androgen Insensitivity Syndrome is a condition that affects individuals with a Y chromosome, who are genetically male. It is not exclusive to females.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that Fragile X Syndrome is the most common cause of inherited intellectual disability and can manifest with a range of symptoms, including developmental delays, intellectual disability, and behavioral problems.
**Correct Answer:** A. Fragile X Syndrome.