All the cells in a person's body have the same DNA and the same genes. However, the difference between cells in different tissues and organs is that the "expression" of the genes differs between cells. ... For example, liver cells have different proteins than skin cells, even though their DNA is the same......this is a google search i hope it helps
Infinity, the concept of something that is unlimited, endless, without bound. ... Spatial and temporal concepts of infinity occur in physics when one asks if there are infinitely many stars or if the universe will last forever.
