Atypical Chromosomes Flashcards
What is Klientelter Syndrome?
A genetic condition in males characterized by an extra X chromosome (XXY)
Occurs in about 1 in 750 births
What are common features of Klientelter Syndrome?
- Learning difficulties
- Reduced fertility or infertility
- Less body hair
Also associated with small testes due to insufficient testosterone
What psychiatric disturbances are associated with Klientelter Syndrome?
Some patients may exhibit psychiatric disturbances
Evaluation often includes MRI scans showing smaller frontal and temporal lobes
How can Klientelter Syndrome be diagnosed?
It can be diagnosed prenatally
Treatments such as testosterone supplements may improve male sexual characteristics
What is Turner Syndrome?
A genetic condition in females characterized by having only one complete X chromosome (XO)
Occurs in about 1 in 2200 births
What are common features of Turner Syndrome?
- Short stature
- No menstrual cycle
- Facial differences
- Social immaturity
Can lead to miscarriage if it occurs at conception
What treatments have been studied for Turner Syndrome?
Estrogen therapy has been researched
Girls with TS given estrogen between ages 8.5-12 years showed earlier and greater breast development
True or False: Individuals with Turner Syndrome generally have normal cognitive development.
False
Turner Syndrome may lead to developmental effects and social immaturity
Fill in the blank: Klientelter Syndrome is associated with an extra _______ chromosome.
X
Fill in the blank: Turner Syndrome is characterized by the absence of a second complete _______ chromosome.
X
