22. Putting it all together: Describe the process of DNA transcription.

DNA transcription is a process by which mRNA copies the DNA code to make a messenger RNA (mRNA) molecule. The mRNA carries the information needed to make proteins in a cell. It carries the information from the DNA in the nucleus of the cell to the ribosomes, where proteins are made.

Transcription is the process of creating a complementary RNA copy of a sequence of DNA. It involves RNA polymerase reading a DNA sequence to produce an RNA strand, resulting in an RNA complement with uracil (U) instead of thymine (T).

During transcription, genetic instructions are transferred from DNA to mRNA in the cell nucleus. The process consists of three stages: initiation, elongation, and termination, and it plays a crucial role in gene expression and protein synthesis.

The purpose of transcription is to produce messenger RNA (mRNA) as a mobile molecular copy of genes, essential for translating genetic information into protein products through the subsequent step of translation.

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