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Spontaneous Mutation Occurs When

Question 48

Multiple Choice

Spontaneous mutation occurs when


A) a DNA base is in an unstable tautomeric form as the replication fork arrives and a mismatched base is inserted.
B) a person smokes cigarettes or is exposed to a teratogen for many years.
C) the sugars and phosphates in the DNA double helix exchange places.
D) thymine temporarily becomes uracil.

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