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7 April, 11:07

During the past two decades, over 25% of the beluga whales in Canada's St. Lawrence Seaway have died of cancer. Biologists speculate that these deaths are caused by polycyclic aromatic hydrocarbon pollutants. These cause

A. oxidation of G to form an A

B. methylation of C to form a T

C. double strand breaks

D. pyrimidine dimers

E. G to T transversion mutations

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  1. 7 April, 14:37
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    Answer: B is the correct option

    Explanation:

    these mechanisms may play a fundamental role in precipitating the development of a large and diverse number cancers in whales due tho the polyclic aromatic hydrocarbon pollution.
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