Transcription is the process in which genetic information stored in a strand of DNA is copied into a strand of RNA. The sequence of the four bases in DNA, which are adenine (A), cytosine (C), guanine (G), and thymine (T), is preserved in the sequence of the four bases in RNA, which are A, C, G, and uracil (U).

Functions of Rna Transcripts

RNA molecules have various functions in the cell. Many of the functions are associated with translation, in which the genetic code of messenger RNA molecules is used to help the ribosomes synthesize a specific protein. In addition, ribosomal RNA is the main component of the ribosome, and transfer RNA does the actual translating from nucleotide sequence into amino acid sequence.

RNA molecules may also function as enzymes. They do so either alone or in association with proteins. RNA molecules associate with proteins, for example, when...