Is Rna an Exact Copy

Eukaryotic mRNA molecules are usually composed of small segments of the original gene and are generated by a process of cleavage and rejoining from an original precursor RNA (pre-mRNA) molecule, which is an exact copy of the gene.

Does RNA make an exact copy?

Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). … Although the mRNA contains the same information, it is not an identical copy of the DNA segment, because its sequence is complementary to the DNA template.

Which RNA is a copy?

The majority of genes carried in a cell’s DNA specify the amino acid sequence of proteins; the RNA molecules that are copied from these genes (which ultimately direct the synthesis of proteins) are called messenger RNA (mRNA) molecules. The final product of a minority of genes, however, is the RNA itself.