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Biology - Chapter 16

Question:

Individuals with the disorder xeroderma pigmentosum are hypersensitive to sunlight. This occurs because their cells have which impaired ability?

A) They cannot replicate DNA.

B) They cannot undergo mitosis.

C) They cannot exchange DNA with other cells.

D) They cannot repair thymine dimers.

E) They do not recombine homologous chromosomes during meiosis.

Answer:

D) They cannot repair thymine dimers.

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Last update by mayur on 04/07/2014
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Biology   Chapter 16
Biology - Chapter 16
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Free Flashcard From Biology - Chapter 16
Question: Individuals with the disorder xeroderma pigmentosum are hypersensitive to sunlight. This occurs because their cells have which impaired ability? A) They cannot replicate DNA. B) They cannot undergo mitosis. C) They cannot exchange DNA with other cells. D) They cannot repair thymine dimers. E) They do not recombine homologous chromosomes during meiosis.
Answer: D) They cannot repair thymine dimers.