Which of the following has not been associated with aging in humans?
A) loss of mitochondria
B) 5kb and 7.4kb deletions in mtDNA of heart cells
C) loss of cytochrome oxidase c genes
D) mutations in mtDNA
E) shortening of mtDNA telomeres

Question

Quizplus · Accepted Answer

Mitochondrial DNA (mtDNA) does not contain telomeres. Telomeres are the protective caps found at the ends of chromosomes in the nucleus, not in mitochondrial DNA. The other options (A, B, C, D) have been associated with aging in various studies.

Which of the Following Has Not Been Associated with Aging