What are start and stop codons? - Find 16 Answers & Solutions

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Question: What are start and stop codons?

Posted by: Jitender Nautiyal on: 14 Dec, 2015

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The start codon is the first codon which is AUG this codon codes for Methionine amino acid. There are 3 stop codons which are UAA, UAG, UGA

Answer by:

Manorama Study Sphere, Bhubaneswar

Answer

Start and stop codons are sites for beginning and ending of translation on mRNA. Start codon is AUG that codes of methionine also. STOP codons are UGA, UAG and UAA.

Answer by:

Diksha Kaila, Delhi

Answer

Translation is a major cellular event that translates the information coded in the mRNA in the form of triplet codons to functional protein. The first codon of a mRNA codes for the amino acid Methionine. This codon is AUG. At the very end of the mRNA - codons like UAA(ochre), UAG(amber) or UGA(opal) acts as a signal to stop the translation of that mRNA. These are called stop codon.

Answer by:

Sayan Bhakta, Kolkata

Answer

Start codon is AUG, which codes for methionine.. Stop codons are UAA (ochre),UAG (amber),UGA (opal)

Answer by:

Sandeepan Sengupta, Kolkata

Answer

As ribosome translate a triplet genetic code (called as codon) in the RNA copy of a gene into specific amino acid sequence of protein. The codon from where the translation of RNA into protein begins is called as Start Codon. AUG is the first or Start codon in 83% of E.coli gene while the remaining 17% is make up UUG and GUG. AUG codes for Methionine amino acid. Out of 64 possible different arrangement of the four nucleotides (A,U,G&C) in sets of three, three (UAA, UAG and UGA) functionally cause translation to stop and generally code for no amino acid so called as Stop Codon. How to remember Stop Codon: Ulu Aya Aya- UAA Ulu Aya Gya- UAG Ulu Gya Aya- UGA Thankyou

Answer by:

Naveen Kumar, Ghaziabad

Answer

AUG is the start codon.. The three stop codons are UAA,UAG,UGA

Answer by:

Sandeepan Sengupta, Kolkata

Answer

Start codon in DNA-ATG,in RNA-AUG

Stop codon in DNA-TAA,TGA,TAG, in RNA-UAA,UAG,UGA

Answer by:

Sayani Mitra, Kolkata

Answer

a start codon (AUG) says "start here" and a stop codon (UAA, UAG) says "stop here" as the mRNA is being read. AUG code for N-formylmethionine in this context and the stop codons do not code for any amino acid.

Answer by:

Bhanu Yadav, Pune

Answer

In mRNA, AUG act has a start codon it initiates the protein synthesis (Translation). UAA, UAG, UGA are stop codon where t-RNA not able to recognize this codons and termination starts here.

Answer by:

Aravinth. P, Chennai

Answer

Start codon is the first codon of mRNA transcript. In eukaryotes start codon is methionine. It codes forAUG.

Stop codon signals the termination of translation. In RNA the stop codons are UAG, UAA, UGA. In DNA the stop codons are TAG,TAA,TGA.

Answer by:

Mohammed Liyaqath Pasha, Bangalore

Answer

Codons basically are a set of three nitrogenous bases, also called triplet code. Start codon, made of the nitrogenous bases AUG, initiate the process of protein synthesis. While stop codons, of three kinds, UAA, UAG and UGA, are the codons that terminate the process of protein synthesis.

Answer by:

Elsirani, Chennai

Answer

During Protein Synthesis start codon is the first codon of mRNA. . In eukaryotes start codon is AUG which codes for amino acid methionine.

Stop codon signals the termination of translation process of Protein synthesis. In mRNA the stop codons are UAG, UAA, UGA.

Answer by:

Sudershan K Rao, Gurgaon

Answer

The start codon marks the site at which translation into protein sequence begins, and the stop codon marks the site at which translation ends.

Answer by:

Abhishek Sonu, Delhi

Answer

In the transcribed product of gene that is mrna there are specific regions which gives signal to the transltion machinery of the cell to initiate and terminte the translation process.these regions are present in a group of three nucleotides which is known as codons.aug is the start codon that codea for formyl mithionine in bacteria and methionine in eukaryotic cells.stop codons are uag(amber),uaa(ochre),uga(opal).at these regions the ribosome gets detached from the mrna.

Answer by:

Sushmita Kumari, Bangalore

Answer

Start codon is the first codon of mRNA transcript. In eukaryotes start codon is methionine. It codes forAUG.

Stop codon signals the termination of translation. In RNA the stop codons are UAG, UAA, UGA. In DNA the stop codons are TAG,TAA,TGA.

Answer by:

T Husmin Risha, Kochi

Answer

codon is a nucleotide triplet which encodes a specific amino acid. These are present on mRNA during protein synthesis ribosome and mRNA gets associated and once the the ribosome pass through start codon region it start synthesizing protein and once it reaches stop codon it end the process. This is how the process is regulated.

Answer by:

Madhura S, Bangalore

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