Friedreich Ataxia 01

Topic: Pediatric

Created on Friday, October 3 2008 by jdmiles

Last modified on Friday, October 3 2008.

 
        A) It has an autosomal dominant inheritance pattern
 
        B) It is associated with an expanded GGA trinucleotide repeat
 
        C) It is associated with an expanded GAA trinucleotide repeat
 
        D) It has an X-linked dominant inheritance pattern
 
        E) It is associated with an expanded AAG trinucleotide repeat
 

 

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This question was created on October 03, 2008 by jdmiles.
This question was last modified on October 03, 2008.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) it has an autosomal dominant inheritance pattern

This answer is incorrect.

Friedreich ataxia is associated with an expanded GAA trinucleotide repeat. It has an autosomal recessive inheritance pattern.  (See References)

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B) it is associated with an expanded GGA trinucleotide repeat

This answer is incorrect.

Friedreich ataxia is associated with an expanded GAA trinucleotide repeat. It has an autosomal recessive inheritance pattern.  (See References)

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C) it is associated with an expanded GAA trinucleotide repeat

This answer is correct.

Friedreich ataxia is associated with an expanded GAA trinucleotide repeat. It has an autosomal recessive inheritance pattern.  (See References)

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D) it has an X-linked dominant inheritance pattern

This answer is incorrect.

Friedreich ataxia is associated with an expanded GAA trinucleotide repeat. It has an autosomal recessive inheritance pattern.  (See References)

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---

E) it is associated with an expanded AAG trinucleotide repeat

This answer is incorrect.

Friedreich ataxia is associated with an expanded GAA trinucleotide repeat. It has an autosomal recessive inheritance pattern.  (See References)

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References:

1. Rowland, L.P. (Ed) (2000). Merritt's Neurology, 10th Edition. Lippincott Williams & Wilkins, Philadelphia. (ISBN:0683304747)

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pediatric
Friedreich Ataxia 01
Question ID: 100308148
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 10/03/2008
Modified: 10/03/2008
Estimated Permutations: 50400