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.
Garrett Morgan was an inventor and businessman from Cleveland who invented a device called the Morgan safety hood and smoke protector in 1914. On July 25, 1916, Garrett Morgan made national news for using his gas mask to rescue 32 men trapped during an explosion in an underground tunnel 250 feet beneath Lake Erie.