MELAS is an inherited condition which occurs due to deficiency of
MELAS (mitochondrial encephalopathy, lactic acidosis, and stroke) is an inherited condition due to NADH-Q oxidoreductase (Complex I) or cytochrome oxidase (Complex IV) deficiency. It is caused by a mutation in mitochondrial DNA and may be involved in Alzheimer disease and diabetes mellitus. Reference: Harper; 30th edition; Page no: 135
Complex I
Complex II
Complex III
All the above
Respiratory chain