Site-directed mutagenesis is a method in biochemistry/ molecular biology that introduces small changes into the DNA sequence of
a gene. This change alters the amino acid sequence of a protein and can alter the function of a protein. What changes are typically inserted into the DNA sequence?
Site-directed mutagenesis alters the amino acid sequence by introducing changes in the base sequence of DNA. This is done by either by substituting a single base, multiple bases and inserting or deleting a base.
If you're talking about excel then you would select the cell with the label you want and click "Format Painter". Then, you click and drag it down the first 10 and it will automatically apply that same label to all the cells.