Respuesta :

Answer:       Mutations

Explanation:

A substitution mutation occurs when specific bases (A, T, C or G) in a gene are swapped for different ones. This type of mutation doesn't cause a difference in the number of bases like insertion or deletion mutations do. Substitution mutations just switch out one or more bases for different ones.        

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Answer:

If you are asking A BLANK mutation occurs when a base in the DNA sequence is replaced by a different base, the answer is substitution.

Explanation:

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