An 11-year-old girl is suspected of having Turner syndrome. Which ...

[Jramos095]

An 11-year-old girl is suspected of having Turner syndrome. Which of the following diagnostic tests would be the most useful component of screening to confirm or rule out the diagnosis?
 
  A)
  Computed tomography of the head
  B)
  Echocardiogram
  C)
  Bone scan
  D)
  Liver biopsy

Question 2

A health care professional works in a context where there are a large number of clients who live with genetic disorders. Which of the following circumstances would most likely involve an individual who has a genetic disorder?
 
  A)
  The primordial germ cells of both of the individual's parents have undergone meiosis.
  B)
  Two chromosomes of the same number have been inherited from one parent.
  C)
  The individual possesses 22 pairs of autosomes.
  D)
  The individual's karyotype indicates separate X and Y chromosomes at chromosome 23.

[GCabra]

Answer to Question 1

Ans:
B

Feedback:

Because of the association between congenital heart defects and Turner syndrome, an echocardiogram would most likely yield useful results. Turner syndrome is not associated with brain, skeletal, or liver involvement, and these tests would be less likely to provide useful insight.

Answer to Question 2

Ans:
B

Feedback:

When two chromosomes of the same number are inherited from one parent, the result can be the disorder of uniparental disomy. Answers A, C, and D all relate normal genetic processes.

[Jramos095]

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[Viet Thy]

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