In the given scenario, The word “lengthening” should be changed to the word “shortening.” The correct option is C.
A telomere is an end-of-chromosome region of repetitive DNA sequences. Telomeres keep the ends of chromosomes from fraying or tangling.
In the given scenario, where, In high-stress humans, exercise has been shown to prevent telomere lengthening. The word “lengthening” should be changed to the word “shortening.”
The correct option is C.
For more details regarding telomere, visit:
https://brainly.com/question/5896537
#SPJ2