The answer for that would be C. this is because it is the only one where a base of the DNA was deleted. A. added another base to it, B. was exactly the same, and D. was a mutation of the DNA because it changed one part of it
Therefore, the answer is C
Hope this helped! :D
21: potassium has 20 neutrons
22: is d
Answer:
D, potassium hydroxide
Explanation:
Nitric acid us given and is obviously an acid
