The nucleotides of the DNA strands are read in groups of three. Each triplet is called a codon. Thus, a codon may be CGA, or TTA, or GCT, or any other combination of the four bases, depending on their sequence in the DNA strand. The mRNA molecule consists of a series of codons received from the genetic message in the DNA. Once the stop codon has been reached, the mRNA molecule leaves the DNA molecule, and the DNA molecule rewinds to form a double helix. Meanwhile, the mRNA molecule proceeds thorough the cellular cytoplasm toward the ribosomes.Translation. Translation is the process in which the genetic code will be “translated” to an amino acid sequence in a protein. The process begins with the arrival of the mRNA molecule at the ribosomes.
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