What is the process of copying DNA into pre-mRNA called?

The process of copying DNA into pre-mRNA is called transcription. During transcription, the enzyme RNA polymerase binds to a specific region of the DNA and synthesizes a complementary strand of RNA. This newly formed RNA strand is a sequence of nucleotides that corresponds to the DNA template, with uracil (U) being used in place of thymine (T). This process is crucial for gene expression, as it is the first step in producing proteins, which are essential for various cellular functions and processes.

In transcription, the DNA serves as a template to create a messenger RNA (mRNA) molecule, which carries the genetic information from the nucleus to the cytoplasm, where it will later be translated into a protein. The importance of this process lies in its role in controlling the flow of genetic information within a cell, ultimately influencing how an organism develops and functions.

To clarify the context of the other processes: replication refers to the copying of DNA itself, ensuring each new cell has an identical set of genes, while translation is the process of decoding mRNA to synthesize proteins. Splicing involves the modification of pre-mRNA, where introns are removed, and exons are joined together to form the final mature mRNA molecule that will