Friedreich Ataxia 01

Topic: Pediatric

Created on Friday, October 3 2008 by jdmiles

Last modified on Friday, October 3 2008.

 
        A) It is associated with an expanded AAC trinucleotide repeat
 
        B) It is associated with an expanded AGG trinucleotide repeat
 
        C) It is associated with an expanded GAC trinucleotide repeat
 
        D) It has an autosomal recessive inheritance pattern
 
        E) It has an X-linked dominant inheritance pattern
 

 

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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 is associated with an expanded AAC 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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B) it is associated with an expanded AGG 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 GAC 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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D) it has an autosomal recessive inheritance pattern

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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---

E) 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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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