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Changes in a DNA sequence caused by substitution of one nucleotide for another?
Wiki User
∙ 13y ago
Point mutations
Wiki User
∙ 13y ago
A substitution mutation occurs when one nucleotide in a DNA sequence is replaced with a different nucleotide. This can lead to a change in the corresponding amino acid in the protein produced from that gene, potentially altering the protein's structure and function. Substitution mutations can be silent (no change in the amino acid), missense (change in one amino acid), or nonsense (premature stop codon).
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If one nucleotide is replaced by another it is called?
If one nucleotide is replaced by another, it is called a point mutation. This type of mutation involves a change in a single nucleotide within the DNA sequence.
What is a point mutuation?
A point mutation is a type of genetic mutation that involves a change in a single nucleotide base pair in DNA. This can result in the substitution of one nucleotide for another, the insertion of an extra nucleotide, or the deletion of a nucleotide. Point mutations can lead to changes in the amino acid sequence of a protein, which can affect its structure and function.
A change in which part of a gene is the result of a mutation?
A mutation can result in a change in the DNA sequence of a gene. This can involve a substitution of one nucleotide for another, an insertion or deletion of nucleotides, or rearrangement of the existing nucleotides. These changes can alter the protein produced by the gene and may lead to genetic disorders or other consequences.
What are the three types of mutation?
The three types of mutations are substitution (a single nucleotide is replaced with a different one), insertion (an extra nucleotide is added to the DNA sequence), and deletion (a nucleotide is removed from the DNA sequence).
What is a nucleotide substitution error?
Before you know what a nucleotide substitution error is, you have to know what a nucleotide is. A nucleotide holds the DNA strand together and helps make copies. When a Strand is ready to be copied, Let's say one nucleotide reads for G(Guanine), then another nucleotide would be added, which would mean C (Cytosine) would be added. A substitution error would mean that, that instead of Cytosine being added, Thymine, Adenine, Uracil, or Guanine could be added, resulting in a mutation.
If one nucleotide is replaced by another it is called?
If one nucleotide is replaced by another, it is called a point mutation. This type of mutation involves a change in a single nucleotide within the DNA sequence.
How are substitution mutations caused?
Substitution mutations are typically caused by errors during DNA replication, where a wrong nucleotide is incorporated into the DNA sequence. This can also be caused by exposure to mutagens, such as certain chemicals or radiation, which can lead to changes in the DNA nucleotide sequence.
Which mutation occurs when one nucleotide is replaced with another base?
Substitution
What is a point mutuation?
A point mutation is a type of genetic mutation that involves a change in a single nucleotide base pair in DNA. This can result in the substitution of one nucleotide for another, the insertion of an extra nucleotide, or the deletion of a nucleotide. Point mutations can lead to changes in the amino acid sequence of a protein, which can affect its structure and function.
What is one example of a substitution mutation?
One common example of a substitution mutation is a point mutation where one nucleotide base is replaced by another. This can lead to changes in the amino acid sequence of a protein during translation. An example would be a mutation where a Cytosine (C) is substituted for a Thymine (T) in the DNA sequence.
Which mutation occurs when one nucleotide base in replaced with another base?
A point mutation occurs when one nucleotide base is replaced with another base. This can lead to changes in the amino acid sequence during protein synthesis, potentially affecting the protein's function.
A change in which part of a gene is the result of a mutation?
A mutation can result in a change in the DNA sequence of a gene. This can involve a substitution of one nucleotide for another, an insertion or deletion of nucleotides, or rearrangement of the existing nucleotides. These changes can alter the protein produced by the gene and may lead to genetic disorders or other consequences.
What is point mutation substitution?
When a nitrogen base is substituted for a different one so it may code for a different amino acid. Sometimes substitution still codes for a same amino acid, in which case it becomes a silent mutation, but in other times it may alter the protein entirely.
What are the three types of mutation?
The three types of mutations are substitution (a single nucleotide is replaced with a different one), insertion (an extra nucleotide is added to the DNA sequence), and deletion (a nucleotide is removed from the DNA sequence).
What is a base substitution?
A base substitution is a type of mutation in DNA where one nucleotide is replaced by another. This type of mutation can lead to the substitution of one amino acid in a protein for another, potentially altering the protein's structure and function. Base substitutions can have various effects on an organism, depending on the location and nature of the mutation.
True or false The substitution of one nucleotide for another in the gene never affects the function of the protein?
true
What is a nucleotide substitution error?
Before you know what a nucleotide substitution error is, you have to know what a nucleotide is. A nucleotide holds the DNA strand together and helps make copies. When a Strand is ready to be copied, Let's say one nucleotide reads for G(Guanine), then another nucleotide would be added, which would mean C (Cytosine) would be added. A substitution error would mean that, that instead of Cytosine being added, Thymine, Adenine, Uracil, or Guanine could be added, resulting in a mutation.
