Telomere Shortening Puts a Limit on the Number of Times

question 44

Multiple Choice

Telomere shortening puts a limit on the number of times a cell can divide. Research has shown that telomerase can extend the life span of cultured human cells. How might adding telomerase affect cellular ageing?

• A) Telomerase will speed up the rate of cell proliferation.
• B) Telomerase eliminates telomere shortening and retards ageing.
• C) Telomerase shortens telomeres, which delays cellular ageing.
• D) Telomerase would have no effect on cellular ageing.

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