Of the following genetic lesions that cause cancer,which is the most common?

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Several types of genetic events can activate oncogenes.The most common are small scale changes in DNA called point mutations.
Several types of genetic events can activate oncogenes.The most common are small scale changes in DNA called point mutations,not insertions.
Several types of genetic events can activate oncogenes.The most common are small scale changes in DNA called point mutations,not deletions.
Several types of genetic events can activate oncogenes.The most common are small scale changes in DNA called point mutations,not amplification.

Of the Following Genetic Lesions That Cause Cancer,which Is the Most