Want this question answered?
point mutation, insertion and deletion
An insertion mutation is when an extra nucleotide is inserted into the DNA molecule.For example if the original sequence is:AATGCATGGACTan insertion could be:AATCGCATGGACTThis would change the code from: AAT GCA TGG ACTto AAT CGC ATG GAC T.....You can see that after the insertion all the codes are changed. Since each set of three nucleotides codes for an amino acid, this would change all of the subsequent amino acids in the protein coded for by the gene.
during meiosis
PKU (phenylketonuria) is a point mutation, specifically an autosomal recessive genetic disorder caused by a mutation in the PAH gene. This mutation leads to impaired metabolism of the amino acid phenylalanine. It is not a frameshift mutation, which would involve an insertion or deletion of nucleotides, shifting the reading frame of the gene.
Because a point mutation is the replacement of a single base with another base. Thus, if the replacement base codes for the same type amino acid, such as a hydrophobic type amino acid replacing a hydrophobic amino acid, no change to the protein coded for will occur. If a deletion mutation occurs then the code for the protein is disrupted and the protein product is probably going to be useless to the body and may even cause a disease.
Insertion mutations can affect many amino acids in the protein.An insertion mutation usually causes more defects during protein synthesis than point mutation because an insertion mutation will affect many amino acids in the protein.
Insertion mutations can affect many amino acids in the protein.An insertion mutation usually causes more defects during protein synthesis than point mutation because an insertion mutation will affect many amino acids in the protein.
point mutation, insertion and deletion
Missense mutation Nonsense mutation Frameshift insertion Frameshift deletion All may cause antibiotic resistance in bacteria
Insertion mutations can affect many amino acids in the protein.An insertion mutation usually causes more defects during protein synthesis than point mutation because an insertion mutation will affect many amino acids in the protein.
Three types of gene mutations are substitution, insertion, and deletion. Another gene mutation would be frame shift. All these mutations can cause deformities of the gene.
An insertion mutation is when an extra nucleotide is inserted into the DNA molecule.For example if the original sequence is:AATGCATGGACTan insertion could be:AATCGCATGGACTThis would change the code from: AAT GCA TGG ACTto AAT CGC ATG GAC T.....You can see that after the insertion all the codes are changed. Since each set of three nucleotides codes for an amino acid, this would change all of the subsequent amino acids in the protein coded for by the gene.
during meiosis
PKU (phenylketonuria) is a point mutation, specifically an autosomal recessive genetic disorder caused by a mutation in the PAH gene. This mutation leads to impaired metabolism of the amino acid phenylalanine. It is not a frameshift mutation, which would involve an insertion or deletion of nucleotides, shifting the reading frame of the gene.
An error in the repair of damaged DNA-Apex
Because a point mutation is the replacement of a single base with another base. Thus, if the replacement base codes for the same type amino acid, such as a hydrophobic type amino acid replacing a hydrophobic amino acid, no change to the protein coded for will occur. If a deletion mutation occurs then the code for the protein is disrupted and the protein product is probably going to be useless to the body and may even cause a disease.
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.