Some research has indicated that increased exercise is linked to increased telomere length in renewable tissues, like
blood. Assuming that telomerase levels are not increased by exercise, what might explain the increase in telomere length?
a. DNA replication occurred more frequently in individuals who exercised.
b. Cell division occurred more rapidly in individuals who exercised.
c. Telomerase activity was higher in individuals who exercised.
d. Telomerase activity was lower in individuals who exercised.
e. Fewer DNA replication errors occurred in individuals who exercised.
ANSWER: c
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