Respuesta :
Answer;
Nucleotide
Before a cell can divide, it must copy its DNA one nucleotide at a time in a process called DNA replication.
Explanation;
- DNA replication is the process by which cells synthesis new DNA strands from the existing DNA molecules before cell division can take place, a process that is catalyzed by DNA polymerase.
- The enzyme DNA polymerase is responsible for catalyzing the addition of nucleotide substrates to DNA, during and after the process of replication.
- DNA replication is a semi-conservative process such that the resulting two daughter strand are made of one new DNA strand and one DNA strand from the original DNA.