LIVING CORAM DEO
Wednesday, 18 October, 2017

The Human DNA

The Human DNA

The human genome contains approximately 3 billion base pairs of 544206_202431933275873_615531276_nDNA packaged into 23 chromosomes. Of course, most cells in the body are diploid, with 23 pairs of chromosomes. That makes a total of 6 billion base pairs of DNA per cell. Because each base pair is around 0.34 nanometers long (a nanometer is one-billionth of a meter), each diploid cell therefore contains about 2 meters of DNA. Moreover, it is estimated that the human body contains about 50 trillion cells—which works out to 100 trillion meters of DNA per human. Now, consider the fact that the Sun is 150 billion meters from Earth. This means that each of us has enough DNA to go from here to the Sun and back more than 300 times, or around Earth’s equator 2.5 million times!