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.
Over the years machine guns came into existence. The man who invented the first machine gun was an English, named James Puckle. He was a lawyer and a writer from London, who invented the 'Defence Gun' popularly known as 'Puckle Gun'.This machine gun was a multi-shot gun mounted on a stand and was able to fire nine rounds per minute. It was controlled by a hand crank.ut it is believed that, around the year 500 AD, the Chinese were the ones who invented the first gun ever. It acted for ejecting a projectile by using gun powder. This wittingly happened to be the first gun invented in the history of inventions.