A sestina, or sextain, is a poem comprised of six stanzas containing six lines each. These six-by-six stanzas are followed by a shorter (3-line) final stanza known as an envoi. This gives the sestina a total of 39 lines (6 * 6 + 3 = 39).
1 A nonsense mutation is a point mutation in a sequence of DNA that results in a premature stop codon, or a nonsense codon in the transcribed mRNA, and possibly a truncated, and often nonfunctional protein product.
mRNA is messenger RNA. mRNA is transcribed from DNA, and carries coding information to the ribosomes. Here, the RNA is translated into a protein. In mRNA genetic information i â¦ s encoded in the sequence of nucleotides arranged into codons.ranscription is the synthesis of an mRNA molecule using a DNA molecule for a template. That mRNA molecule then goes on to complete translation in the ribosome. Translation is â¦ the process in which proteins are produced based on instructions carried by mRNA.