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What would happen if the very last stop codon of a mRNA molecule was mutated into a regular codon?
Wiki User
∙ 14y ago
That isn't exactly a mutation; it's more like degradation. It would basically mean that mRNA, which is made up of multiple codons, will deteriorate into a codon, which is only 3 nucleic acids combined together. Such corrosion would probably result in the cell breaking the codon like how it normally does mRNA, or it will be absorbed into the nucleus to be combined to form a normal mRNA.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoNo. A stop codon in (translation) is basically part of the termination step. This causes the binding of a "release factor" that hydrolyzes the polypeptide chain and allows the transcription complex to break free, along with the polypeptide chain. Therefore, it is NOT a separate amino acid that's being added.
Wiki User
∙ 12y agoIt would mean that, where the first occurence of the amino acid in the sequence should be, the protein would end, so likely to truncate the protein by a good deal and make it completely non-functional!
Wiki User
∙ 11y agoThen the mRNA molecule continues to be transcribed until a STOP codon is reached later on. This would make the protein nonfunctional
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What would happen if the DNA sequence that coded for Cys was mutated in the third position from a U to an A?
The stop codon would be introduced prematurely.
What is a sequence of three nitogenous bases in a messenger-RNA molecule called?
condon
What are the bases on the mRNA strands are called?
A 3-base sequence of nitrogen bases on a molecule of mRNA is called a codon.
When does the polypeptide stop growing?
It reaches a stop codon on the mRNA molecule
A stop codon on an mRNA molecule does not code for any?
amino acid
What would happen if the DNA sequence that coded for Cys was mutated in the third position from a U to an A?
The stop codon would be introduced prematurely.
What is a sequence of three nitogenous bases in a messenger-RNA molecule called?
condon
What molecule contain anticodons?
The tRNA gene sequence is the anti-codon while mRNA is the codon sequence.
In which molecule would you find an anti-codon?
an anti-codon is a code for an amino acid found on protein
What is the initiator codon in most molecule of mRNA?
AUG
An anti-codon is part of a molecule of?
Transfer RNA. tRNA.
What are the bases on the mRNA strands are called?
A 3-base sequence of nitrogen bases on a molecule of mRNA is called a codon.
Molecule whose properties determined by sequence of amino acids?
Codon
A stop codon on an mRNA molecule does not code for any?
amino acid
When does the polypeptide stop growing?
It reaches a stop codon on the mRNA molecule
If the sequence ATG codon in a specific firefly should become ATA after a mutation will the firefly be able to emit light?
If the ATG codon is mutated to an ATA codon, the firefly may still be able to emit light. If the amino acid it codes for stays the same, the fly will emit light.
What step happens in translation?
The ribosome reaches the start codon.
