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A mutation within a gene that will insert a premature stop codon in mRNA would?
Wiki User
∙ 13y ago
Most likely result in mRNA that could not be translated and thus would not give rise to any proteins
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoresult in a shorten polypeptide chain.
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When would a mutation in DNA not cause a change in how the gene is expressed or in which proteins are made?
If a point mutation occurs in a location that is not critical to the structure and function of the protein, it will not change the way the gene is expressed. Also, since most amino acids have more than one codon, if the point mutation resulted in a codon for the same amino acid without the mutation, it will not change the way the gene is expressed.
Why is a silent mutation called silent?
a mutation that does not affect protein production.
Where do you find anticodon?
The anti-codon is the molecule of mRNA in the nucleus which copies the codon from DNA in reverse. This process is reversed again when tRNA copies the mRNA in reverse, thereby restoring the original codon sequence.
When the ribosome reads mRNA 3 bases at a time the bases are called a what?
a set of three nucleotides is called codons. A set of 3 nucleotides in a tRNA that attaches to the complimentary codon is called the anti-codon
Which codon specifies tryptophan?
UGG
What mutation stops translation of the mRNA?
The type of mutation that stops the translation of a protein is a nonsense mutation. This occurs when a base substitution (point mutation) results in a STOP codon and thus stops translation of the sequence into a protein.
What is the difference between a nonsense mutation and a missense mutation?
Missense mutation: changes one sense codon to another, resulting in incorporation of amino acid.Nonsense mutation: changes a sense codon into a stop (or nonsense) codon, resulting in premature termination.
A mutation that occurs at a specific location within a nucleotide sequence is called a?
Point mutation and it can be effective or silent depend upon at the site of codon
What produces a nonsense mutation?
A nonsense mutation is a genetic mutation in a DNA sequence that leads to the appearance of a stop codon where previously there was a codon specifying an amino acid. DNA is a chain of many smaller molecules called nucleotides. During protein formation, DNA (or RNA) nucleotide sequences are read three nucleotides at a time in units called codons, and each codon corresponds to a specific amino acid or stop codon, which is also called nonsense codon because it does not code for an amino acid and instead signals the end of protein synthesis. Therefore, nonsense mutations occur when a premature nonsense or stop codon is introduced in the DNA sequence. When the mutated sequence is translated into a protein, this premature stop codon results in the production of a shortened, and likely nonfunctional, protein.
A point mutation that changes a codon specifying an amino acid into a stop codon is called a?
nonsense mutation
What are the similarities of a nonsense mutation and a missense mutation?
Both nonsense and missense mutations are point mutations - meaning a single base has been substituted. The difference between the two is that a missense mutation results in an amino acid being replaced with a different amino acid, whereas a nonsense mutation results in a premature stop codon.
Will a point mutation cause the cell to make an incomplete polypeptide if the mutation results in a stop codon?
Yes, a point mutation will cause the cell to make an incompelete polypeptide chain that is non-functional, if the mutation results in a stop codon. This type of a mutation is also called as the Nonsense Mutation.
A point mutation will cause the cell to make an incomplete polypeptide if the mutation results in?
codon
A genetic mutation that causes a codon that should code for a specific amino acid to be changed into a stop codon results in a shortened protein product and is known as?
a nonsense mutation
What amino acid is coded for by this sequence before mutation?
The neutral mutation does not change the amino acid coded for by the codon. A good example is the RNA codon that could be the CCA, CCC or the CCG.
What amino acid is coded for by this sequence before the mutation?
The neutral mutation does not change the amino acid coded for by the codon. A good example is the RNA codon that could be the CCA, CCC or the CCG.
Will point mutation CAUSE a cell to make an incomplete polypeptide if the mutation results in a stop codon?
Yes it will.
