True north is a fixed point on the globe. Magnetic north is quite different. Magnetic north is the direction that a compass needle points to as it aligns with the Earth's magnetic field. ... However, its position is constantly changing, and soon magnetic north and true north will align.
-Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein. These mutations result in no change of the amino acid or amino acid functionality when the altered messenger RNA (mRNA) is translated.
