1. Did you know that if the chromosomes in a human diploid cell (a cell containing duplicated chromosomes) were unraveled and lined up end to end they would be 2 meters long?
2. The number of chromosomes varies widely within organisms. The greatest number can be found in the fern Ophioglossum reticulatum: 630 pairs, the smallest number can be found in some species of ants: 1 pair, with the mosquito coming in a close second with only 3 pairs. Humans have 23 pairs of chromosomes.
3. The moon is approximately 384,400 kilometers (~238,900 miles) from Earth. If the DNA from roughly 200 million human somatic cells was extracted and lined up end-to-end, it would reach the moon. A thread that thin will of course be invisible to the eye.
4. It would take over 8,000 cell membranes, stacked on top one another, to equal the thickness of a page from a book.
5. There are nearly a total of 5-trillion mitochondria in the muscle cells of an active 130 lb. human female.
6. If all the virus on Earth were stacked on top of each other they would be longer than 1024 meters. That’s more than 200 light years away.
7. On average, there are between 100,000-150,000 strands of hair on the head.