If the rip is at the top, with gravity, the retina can be pulled off in less than 24 hours; with a rip at the bottom, that process can take weeks. 'The main symptom of detachment is a large blank area in your vision that won't go away, which may be associated with flashing lights or a general fuzziness.
The three-base sequence on a tRNA molecule is known as an anti-codon. This matches up with the codon (another 3-base code) on the mRNA to ensure that the correct amino acid is added to the chain (protein) being created.
When the mRNA code is read by the proteins that build the amino acid chain, it's not read as a sequence of individual letters. It's read in chunks of 3 letters, or 3 nitrogenous bases, at a time. Each set of 3 bases is a special code that indicates a different amino acid.The 3-base sets are called codons. codon is a series of 3 bases in mRNA that specifies a particular amino acid. Codons can also indicate a stop, or termination signal, but we'll get to that in a minute. For now, just think of codons as the basic unit for the genetic code.