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Transcriptions of Genes topics include: Genes expression by making RNA, gene recognized beginning, RNA polymerase and message manufacturing.
Gene transcription is the process of copying genes into different types of RNA. The RNA retains the information and base-pairing properties of the DNA from which it was copied.
The main enzyme involved in transcription is RNA polymerase.
The stages of transcription are: Initiation: The RNA polymerase attaches to the DNA molecule and moves along it until it recognizes a promoter sequence. Elongation: The RNA polymerase adds nucleotides to the mRNA strand. Termination: The end of the transcription process.
The RNA polymerase uses a single-stranded DNA template to synthesize a complementary RNA strand. The RNA polymerase builds the RNA strand in the 5' to 3' direction, adding each new nucleotide to the 3' end of the strand. The RNA copy, known as messenger RNA (mRNA), carries encoded genetic information for protein synthesis. The mRNA plays a vital role in gene expression, converting gene information into functional products, like proteins.
Related: Molecular Biology Practice Test: Genomes and DNA
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