Question

During DNA replication, which nucleotide will bind to an A nucleotide in the original or parental DNA strand?

Answer 1

Nucleotide one with T base.  Because  In DNA Adenine(A) pairs up with its complementary base Thymine(T).  So during the replication DNA polymerase (an enzyme ) makes sure that to the base A of parental nucleotide, the nucleotide with base T binds.