Telomere Shortening Puts a Limit on the Number of Times

question 25

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 aging?

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

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A tendency to approach situations in a certain way because that method has worked in the past, potentially limiting problem-solving abilities.

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The degree to which a measurement or calculation reflects the true value or correct result.

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