How is mRNA formed from DNA?

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DNA provides instructions for the formation of RNA by a process called "transcription." The DNA molecule acts as a template for the RNA molecule. DNA is made up of the nucleotides Adenine (A), Thymine (T), Cytosine (C) and Guanine (G). RNA is made of the nucleotides A, C, and G; instead of T, RNA uses Uracil (U). The RNA nucleotides can base pair with the DNA nucleotides. An A DNA molecule will pair ...