What does gta transcribed into

In translation codons of three nucleotides determine which amino acid will be added next in the growing protein chain. It is important then to decide which nucleotide to start translation, and when to stop, this is called an open reading frame. Once a gene has been sequenced it is important to determine the correct open reading frame ORF. Every region of DNA has six possible reading frames , three in each direction. The reading frame that is used determines which amino acids will be encoded by a gene.

Typically only one reading frame is used in translating a gene in eukaryotes , and this is often the longest open reading frame. Once the open reading frame is known the DNA sequence can be translated into its corresponding amino acid sequence. An open reading frame starts with an atg Met in most species and ends with a stop codon taa , tag or tga. For example, the following sequence of DNA can be read in six reading frames. Three in the forward and three in the reverse direction.

The three reading frames in the forward direction are shown with the translated amino acids below each DNA seqeunce. Frame 1 starts with the " a ", Frame 2 with the " t " and Frame 3 with the " g ". The longest ORF is in Frame 1. False, a frameshift mutation affects all the subsequent amino acids. False, only one codon AUG encodes for the start of protein synthesis; three codons signal the end of protein synthesis.

False, the Wobble Hypothesis explains how alternate base pairing can occur with the first nucleotide going from 5' to 3' in the anticodon. In a missense mutation, the new nucleotide alters the codon so as to produce an altered amino acid in the protein product.

Therefore, translation of the messenger RNA transcribed from this mutant gene will stop prematurely.