DNA and histone proteins are packaged into structures called chromosomes. In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes.Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.Chromosomes are not visible in the cellâs nucleusânot even under a microscopeâwhen the cell is not dividing.ach chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. Chromosomes are not visible in the cellâs nucleusânot even under a microscopeâwhen the cell is not dividing.
Answers. Best Answer: The invention of the minie ball, coupled with the invention of the rifle-musket, allowed for faster shooting and more devastating injuries.The minie ball is shaped like the modern bullet, and shatters on impact.The musket ball, round and circular, would not fracture inside the body, making it easy to pull out. Other important inventions were the Gatling gun, the repeating rifle, and ironclads.he musket ball, round and circular, would not fracture inside the body, making it easy to pull out. Other important inventions were the Gatling gun, the repeating rifle, and ironclads.
For other uses, see 9mm (disambiguation) . The 9Ã19mm Parabellum (abbreviated 9mm, 9mmP, 9Ã19mm or 9Ã19) cartridge was designed by Georg Luger and introduced in 1902 by the German weapons manufacturer Deutsche Waffen-und Munitionsfabriken (DWM) for their Luger semi-automatic pistol.he 9mm NATO can be considered as an overpressure variant of the 9Ã19mm Parabellum that is defined by NATO standards. The service pressure Pmax of the 9mm NATO is rated at 252 MPa (36,500 psi) where C.I.P. rates the 9 mm Luger PTmax somewhat lower at 235 MPa (34,100 psi).