The whole code changes
dna in a cell needs protein and chromosomes.
Let's consider a simple example: protein-coding genes. Mutations, or changes in the DNA sequence of the gene, can alter the amino acid sequence of the protein it codes for, if the new sequence translates into different amino acids. Because the genetic code is degenerate, some amino acids are specified by multiple codons, so some mutations may not alter the amino acid sequence at all. Such mutations, called synonymousmutations, have no affect on the protein. Mutations that alter the amino-acid sequence of the protein, called non-synonymousmutations, may or may not have an affect. Most proteins can tolerate some changes to that sequence and not be significantly affected, but if the sequence change is large enough, or occurs at a critical point so that the structure of the protein is significantly altered, then the protein may become non-functional. If that protein is essential to an organism, such a mutation may be lethal.
Quaternary tertiary secondary primary is the sequence.
A gene is a DNA sequence that codes for a protein.
The genetic code stored in DNA is the sequence of nitrogen bases. The sequence of nitrogen bases determines the sequence of amino acids in a protein, and the sequence of amino acids determines the structure and function of a protein.
well stuff happens. Ha
Protein
The sequence of nucleotides in DNA molecule is equivalent and is closely related to an amino acid sequence in the protein molecule. If for any reason the sequence of DNA nucleotides changes it will be reflected in amino acid sequence in the protein. Moreover, the correct sequence of amino acid in the protein will form the correct three-dimensional structure, or tertiary structure, that will confer the biological activity to protein. If a wrong amino acid is translated from a mutated gene in the DNA could change the spatial structure of the protein and therefore modify or erase its biological function.
The genetic code is redundant
A point mutation could have no impact or it could be lethal. It depends on whether the mutation changes the amino acid sequence of a protein, or if it changes the amino acid at a critical location in the protein.
dna in a cell needs protein and chromosomes.
Let's consider a simple example: protein-coding genes. Mutations, or changes in the DNA sequence of the gene, can alter the amino acid sequence of the protein it codes for, if the new sequence translates into different amino acids. Because the genetic code is degenerate, some amino acids are specified by multiple codons, so some mutations may not alter the amino acid sequence at all. Such mutations, called synonymousmutations, have no affect on the protein. Mutations that alter the amino-acid sequence of the protein, called non-synonymousmutations, may or may not have an affect. Most proteins can tolerate some changes to that sequence and not be significantly affected, but if the sequence change is large enough, or occurs at a critical point so that the structure of the protein is significantly altered, then the protein may become non-functional. If that protein is essential to an organism, such a mutation may be lethal.
DNA determines the sequence of the amino acids (building blocks) in a protein. The sequence of nitrogen bases in the DNA determines the sequence of amino acids in a protein.
The protein that the gene codes for changes or may even cease to be produced, depending on the change to the gene.
DNA base sequence amino acid sequence protein shape protein function trait
there is no "protein in a prion", because prion is nothing but a protein. The gene sequence of this protein is just normal, with nothing special.
The sequence of amino acids in a protein is determined by the sequence of nucleotides in the mRNA, and this is determined by the sequence of nucleotide bases in the DNA.