You discover a family with a history of Leigh syndrome, a disease where affected individuals have a rapid decline in physiological function. Leigh syndrome originates from defects in mitochondrial oxidative phosphorylation. Based on the pedigree results shown below, what is the most likely cause of the disease?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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You discover a family with a history of Leigh syndrome, a disease where affected
individuals have a rapid decline in physiological function. Leigh syndrome originates from
defects in mitochondrial oxidative phosphorylation. Based on the pedigree results
shown below, what is the most likely cause of the disease?
1
2
II
1
2 3
4 5 6
1
2 3
4
5 6
Heteroplasmy of affected mitochondria
Nonsynonomous mutation within the mitochondrial genome
Nonsynonomous mutation within the nuclear genome
Deletion within the mitochondrial genome
Recessive mutation within the nuclear genome
%3D
Transcribed Image Text:You discover a family with a history of Leigh syndrome, a disease where affected individuals have a rapid decline in physiological function. Leigh syndrome originates from defects in mitochondrial oxidative phosphorylation. Based on the pedigree results shown below, what is the most likely cause of the disease? 1 2 II 1 2 3 4 5 6 1 2 3 4 5 6 Heteroplasmy of affected mitochondria Nonsynonomous mutation within the mitochondrial genome Nonsynonomous mutation within the nuclear genome Deletion within the mitochondrial genome Recessive mutation within the nuclear genome %3D
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