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Questions and Answers
What is the primary genetic cause of Triple X syndrome?
What is the primary genetic cause of Triple X syndrome?
- A mutation on chromosome 21.
- A deletion of an X chromosome.
- An extra X chromosome. (correct)
- An extra Y chromosome.
What is the approximate prevalence of Triple X syndrome in females?
What is the approximate prevalence of Triple X syndrome in females?
- 1 in 1,000 (correct)
- 1 in 500
- 1 in 100
- 1 in 10,000
Which of the following is a characteristic symptom commonly associated with Triple X syndrome?
Which of the following is a characteristic symptom commonly associated with Triple X syndrome?
- Extremely pronounced physical abnormalities.
- Excessive height and accelerated development.
- Absence of any menstruation.
- Difficulties with speech and self-esteem. (correct)
What does a karyotype of someone with Triple X syndrome show?
What does a karyotype of someone with Triple X syndrome show?
Besides speech and self-esteem, what is another possible challenge that girls with Triple X syndrome might experience?
Besides speech and self-esteem, what is another possible challenge that girls with Triple X syndrome might experience?
Flashcards
Triple X Syndrome
Triple X Syndrome
A genetic condition caused by an extra X chromosome in females (47,XXX karyotype).
Karyotype
Karyotype
The organized profile of an individual's chromosomes.
Triple X Syndrome Symptoms
Triple X Syndrome Symptoms
Most women with this syndrome experience no or only mild symptoms.
Karyotype Number
Karyotype Number
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Chromosome Pairing
Chromosome Pairing
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Study Notes
Triple X Syndrome
- Caused by an extra X chromosome (47,XXX) in either the oocyte or sperm.
- Affects approximately 1 in 1,000 females.
- Many individuals with triple X syndrome experience no or only mild symptoms.
- Affected individuals may present as infantile with scant menstruation and some degree of mental retardation.
- Often undiagnosed due to mild physical characteristics.
- Girls with this condition frequently experience difficulties with speech and self-esteem.
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