As of July 2014, the longest drop is at Zumanjaro: Drop of Doom at Six Flags Great Adventure, at 415 feet (126 m). A drop tower type of ride is distinct from an observation tower ride; the latter acts more like a traditional elevator, gently lifting riders up to its maximum height before lowering them gently as well.
The autosomes contain the rest of the genetic hereditary information. All act in the same way during cell division. Human cells have 23 pairs of chromosomes (22 pairs of autosomes and one pair of sex chromosomes), giving a total of 46 per cell. In addition to these, human cells have many hundreds of copies of the mitochondrial genome.
Humans have 23 pairs of chromosomes, for a total of 46 chromosomes. In fact, each species of plants and animals has a set number of chromosomes. A fruit fly, for example, has four pairs of chromosomes, while a rice plant has 12 and a dog, 39. Top of page.