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.
The Civil War was the deadliest war in American history. Altogether, over 600,000 died in the conflict, more than World War I and World War II combined. A soldier was 13 times more likely to die in the Civil War than in the Vietnam War. One reason why the Civil War was so lethal was the introduction of improved weaponry. Cone-shaped bullets replaced musket balls, and beginning in 1862, smooth-bore muskets were replaced with rifles with grooved barrels, which imparted spin on a bullet and allowed a soldier to hit a target a quarter of a mile away.