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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.
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If one nucleotide is replaced by another it is called?
frameshift mutation
Why does not the substitution of nucleotides in the mouse change its phenotype or physical characteristics?
The substituted nucleotide has the same directions as the original nucleotide.
Why doesn't the substitution of nucleotides in the mouse change its physical characteristics?
The substituted nucleotide has the same directions as the original nucleotide.
Changes in a DNA sequence caused by substitution of one nucleotide for another?
Point mutations
The substitution addition or removal of a single nucleotide in DNA is called a what mutation?
point mutation
Which mutation occurs when one nucleotide is replaced with another base?
Substitution
If one nucleotide is replaced by another it is called?
frameshift mutation
What is a base substitution?
Base substitution is a type of mutation that involves the substitution of a nucleotide base. It may be categorized as a transition or transversion.
In RNA the nucleotide is substituted for?
thymine....uracil is its substitution.
Why does not the substitution of nucleotides in the mouse change its phenotype or physical characteristics?
The substituted nucleotide has the same directions as the original nucleotide.
Why doesn't the substitution of nucleotides in the mouse change its physical characteristics?
The substituted nucleotide has the same directions as the original nucleotide.
Changes in a DNA sequence caused by substitution of one nucleotide for another?
Point mutations
How are substitution mutations caused?
A substitution mutation in genetics is where one of the nucleotide bases of DNA is swapped for another. These mutations may or may not affect the protein that is being coded.
The substitution addition or removal of a single nucleotide in DNA is called a what mutation?
point mutation
True or false The substitution of one nucleotide for another in the gene never affects the function of the protein?
true
Which mutation occurs when one nucleotide base in replaced with another base?
the substitution has little effect because UGU and UGC both translate into the same amino acid--cysteine.
What are types of point mutation?
The types of point mutations are: base-pair substitution, insertions, deletions, and frameshift mutations. In base-pair substitution, one nucleotide and its corresponding partner are replaced with another pair of nucleotide. In insertion, nucleotide pairs are added to a gene. In deletion, nucleotide pairs are taken out of a gene. Frameshift mutation happens as a result of insertion or deletion when more or less than three (or a multiple of three) nucleotide pairs are added to or taken from a gene.
