________, which is usually inactive in adult cells, is active in 90% of cancer cells.
A) Phagocytosis
B) Apoptosis
C) The p53 gene
D) Telomerase
E) DNA polymerase

Question

Quizplus · Accepted Answer

Telomerase, which is responsible for lengthening telomeres, is usually switched off in adult cells but is active in 90% of cancer cells, allowing the cancer cells to maintain their telomeres and continue dividing.

________, Which Is Usually Inactive in Adult Cells, Is Active