3. a. Reviewing How does a mutation in a gene

affect the order of DNA bases?

Proteins are made up of nucleotide sequences. With a mutation occurs the nucleotide sequence is changed and altered. Specific nucleotide sequences code for certain amino acids. When nucleotide sequences are altered new amino acids are added to a growing amino acid change. These affected amino acids may result in a dysfunctional protein or a new protein [remember amino acid chains code for certain proteins].