50. What is the primary function of the enzyme telomerase? (A) Repairs DNA damage (B) Unwinds the DNA double helix (C) Synthesizes RNA primers (D) Extends the telomeres of chromosomes

50. What is the primary function of the enzyme telomerase?
(A) Repairs DNA damage
(B) Unwinds the DNA double helix
(C) Synthesizes RNA primers
(D) Extends the telomeres of chromosomes

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統計： A(0), B(4), C(1), D(13), E(0) #3426019

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Celeste

B1 · 2025/07/10

#6531419

端粒縮短 DNA複製時，DNA聚合酶無法...

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9. Which of the following statements about myelin is correct? (A) Myelin is distributed on the dendrites and axons of nerve cells, providing insulation and accelerating nerve signal transmission. (B) Myelin in the peripheral nervous system is composed of Schwann cells, which accelerate action potential transmission. (C) Myelin in the central nervous system is composed of Schwann cells, which accelerate action potential transmission. (D) Myelin in the central nervous system is primarily located in the gray matter region to ensure the precision of signal transmission.

50. What is the primary function of the enzyme telomerase?
(A) Repairs DNA damage
(B) Unwinds the DNA double helix
(C) Synthesizes RNA primers
(D) Extends the telomeres of chromosomes

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