A 10-year-old Caucasian girl is brought in by her parents for evaluation of a skin disorder. The child has many freckles on her face, arms, and legs. The parents were told by previous physicians that she suffers from Xeroderma pigmentosum and that they should limit her exposure to sun light. What is the most likely etiology of this disorder?

Question

TuteeHUB · Accepted Answer

Defective RNA transcription from TATA-less promoter

TuteeHUB · Answer

Deficient DNA replication

TuteeHUB · Answer

Impaired DNA repair by nucleotide excision

TuteeHUB · Answer

Defective RNA transcription from TATA-less promoter

TuteeHUB · Answer

Impaired DNA repair by photo reactivation

1.	A 10-year-old Caucasian girl is brought in by her parents for evaluation of a skin disorder. The child has many freckles on her face, arms, and legs. The parents were told by previous physicians that she suffers from Xeroderma pigmentosum and that they should limit her exposure to sun light. What is the most likely etiology of this disorder?
A.	Deficient DNA replication
B.	Impaired DNA repair by nucleotide excision
C.	Defective RNA transcription from TATA-less promoter
D.	Impaired DNA repair by photo reactivation
Answer» C. Defective RNA transcription from TATA-less promoter

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