Answer:
Adenine is added to the sequence.
Explanation:
DNA stands for Deoxyribonucleic acid. The DNA consists of two polynucleotide chains that bears the genetic material in all living things. The material in the DNA is coded, and consists of four chemical bases: Guanine, Adenine, Thymine and Cytosine. It is vital for inheritance.
Mutation is an alteration in the DNA sequence caused by specific chemicals or radiation. The forms of mutation that can occur in the DNA include:
-The substitution of one base pair for another.
-The removal of one or more base pairs.
-The deletion of one or more base pairs.
