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How may or may not a mutation in the DNA sequence of a gene affect the expression of the gene or the sequence of amino acids in the encoded protein?
Wiki User
∙ 12y ago
only a single amino acid could change, because the reading frame is unaffected.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agosome codons (3 letter base pair groups) code for the same amino acid. If one pair is changed, the code may still say the same thing
Wiki User
∙ 9y agoA base substitution mutation in a gene sometimes has no effect on the protein the gene codes for. Which of the following factors could account for this?
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What is mutation.?
A mutation is a permanent change in the DNA sequence of a gene. Mutations in a gene's DNA sequence can alter the amino acid sequence of the protein encoded by the gene. How does this happen? Like words in a sentence, the DNA sequence of each gene determines the amino acid sequence for the protein it encodes. The DNA sequence is interpreted in groups of three nucleotide bases, called codons. Each codon specifies a single amino acid in a protein. butthole
How can a mutation in DNA base sequence cause a change in a protein?
dna in a cell needs protein and chromosomes.
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 can occur as a result of a change in the sequence of nucleotides in a strand of DNA?
The addition or deletion of a nucleotide can lead to a Frameshift mutation. The Frameshift mutation causes a "shift" in the reading frame of the codons in the mRNA. This may lead to the change in the amino acid sequence at protein translation.
What type of mutation could result in a much shorter protein than the original gene product?
the mutation can be a deletion one or even code for a stop, alternatly if can change the stop code and make a longer protein
What is a chromosomal mutation?
mutation is a permanent change in the DNA sequence of a gene and can alter the amino acid sequence of the protein encoded by the gene..
What is the effects of mutation?
A mutation is a permenent in DNA sequence of a gene,mutation in a gene's DNA sequence can alterthe aminoacid sequence of the protein encodedby the gene.
What is mutation.?
A mutation is a permanent change in the DNA sequence of a gene. Mutations in a gene's DNA sequence can alter the amino acid sequence of the protein encoded by the gene. How does this happen? Like words in a sentence, the DNA sequence of each gene determines the amino acid sequence for the protein it encodes. The DNA sequence is interpreted in groups of three nucleotide bases, called codons. Each codon specifies a single amino acid in a protein. butthole
As a result of the incorrect sequence of amino acids will be translated into a protein-resulting in a mutation?
Missence mutation
Do mutations always alter the encoded protein structure and function?
No. Since a mutation in the DNA may not necessarily result in a change to the encoded amino acid in the protein sequence, it is entirely possible. Further, the protein function will likely not change when an amino acid is replaced with one of similar chemical properties. Sometimes it does, sometimes it doesn't. This is the field that molecular evolutionary biologists study.
What is gene expression-?
Gene expression is the process by which the information encoded in a gene is used to direct the assembly of a protein molecule. The cell reads the sequence of the gene in groups of three bases. Each group of three bases (codon) corresponds to one of 20 different amino acids used to build the protein.
What is a A genetic mutation that does not result in a change in the amino acid sequence of the resulting protein is called?
a silent mutation.
When a nitrogenous base is inserted or delete how does that affect the amino acid sequence?
The amino acid sequence is shifted, and this kind of mutation is called a frame shift mutation. All of the amino acid sequence after the mutation will be changed, which will cause a change in shape of the protein, which will then probably result in a nonfunctional protein, since the shape of a protein determines its function.
How can a mutation in a base sequence cause a change in a protein?
dna in a cell needs protein and chromosomes.
How is it possible for a point mutation to have no effect on the function of gene?
If the point mutation does not change the protein to be translated in the 3-letter sequence, then it will have no effect on the gene's function.
How can a mutation in a DNA bases sequence cause a change in a protein?
dna in a cell needs protein and chromosomes.
How can a mutation in a DNA base sequence cause change in a protein?
dna in a cell needs protein and chromosomes.
