Final answer:
The copy of gene/DNA is mRNA, which serves as a template for protein synthesis and is produced by the process of transcription.
Step-by-step explanation:
The copy of the gene/DNA is messenger RNA (mRNA). mRNA serves as a template for protein synthesis by carrying the genetic information from the DNA in the nucleus to the ribosomes in the cytoplasm, where proteins are synthesized. The process by which mRNA is made from a DNA template is known as transcription, and the mRNA molecule is complementary to the DNA sequence of the gene it was copied from.