Answer:B is the answer
Explanation:
Wish you luck and i know because i took the test and made 100 and im in k12 just btw
The relationship between a mutation and a gene is that mutation changes the sequence of DNA bases of gene.
Therefore, it can be said that the relationship between a mutation and a gene is that mutation changes the sequence of DNA bases of gene.
Learn more about mutation at: https://brainly.com/question/17106056