La respuesta sería d<span>
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Answer:
I think they involve swapping of one nucleotide for another during DNA repliction.For example during repliction,a thymine nucleotide might be inserted in place of guanine nucleotide
D would be the answer tomthis
Answer: C
Explanation: It isn't impossible to pollute and it is a usable water source AKA wells
Answer: A single strand
Explaination:RNA and DNA are macromolecules made up of nucleotides organised in chains. DNA has double strands organised in a helical shape.
