Question

which of the following shows a substitution mutation? * 1 point option 1 option 2 other:

Explanation:

A substitution mutation is a type of mutation where one nucleotide is replaced by another. In Option 1, we can observe that a specific segment (highlighted) shows a replacement of nucleotides. Option 2 appears to show a deletion (as a nucleotide is removed rather than replaced).

Answer:

Option 1