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#Question id: 3801


Why should patients with xeroderma pigmentosum avoid sunlight?

#XL - Q Biochemistry
  1. The UV wavelengths do irreparable damage to DNA.

  2. Sunlight inhibits any residual DNA repair activity in the cell.

  3. These patients lack pigmentation to protect them from burning.

  4. Sunlight inhibits DNA polymerases.


Answer:- Option(s): 1


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#Question id: 4584

#XL - S Microbiology

When Cuvier considered the fossils found in the vicinity of Paris, he concluded that the extinction of species ________.

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#Question id: 4585

#XL - S Microbiology

The cow Bos primigenius (which is bred for meat and milk) has a smaller brain and larger eyes than closely related wild species of ungulates. These traits most likely arose by ________.

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#Question id: 4586

#XL - S Microbiology

 What are adaptations?

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#Question id: 4587

#XL - S Microbiology

Which one of the following statements best defines artificial selection?

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#Question id: 4588

#XL - S Microbiology

 Which statement illustrates the connection between natural selection and overreproduction of a population?

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#Question id: 4589

#XL - S Microbiology

Darwin used the phrase "descent with modification" to explain ________.

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