What is produced during transcription?

During transcription, the process involves the synthesis of RNA from a DNA template. This fundamental biological mechanism transcribes the genetic information encoded in the DNA into a complementary RNA strand. The primary type of RNA produced during transcription is messenger RNA (mRNA), which carries the genetic code that dictates the synthesis of proteins during translation.

Transcription occurs within the cell's nucleus and is the first step in gene expression. The enzyme RNA polymerase binds to the DNA at a specific region called the promoter, unwinds the DNA, and synthesizes the RNA molecule by adding nucleotides that are complementary to the DNA template strand.

The other options do not correctly represent the outcome of transcription. Proteins are produced during translation, which follows transcription. DNA is not synthesized during transcription, but rather serves as the template. Fatty acids are unrelated to the transcription process, as they pertain to lipid metabolism and not nucleic acid synthesis. Thus, the correct answer highlights the production of RNA, which is the key product of the transcription process.