In Biology. The sides of the DNA ladder is composed of sugar and phosphate. 4  bases that make up the rungs of the DNA ladder are A, T, G, and C.  The shape of the DNA is a double helix â¦ or twisted ladder.Answered. In Genetics.hat are the sides of the DNA ladder composed of? The sides of the DNA ladder is composed of sugar and phosphate. 4  bases that make up the rungs of the DNA ladder are A, T, G, and C.  The shape of the DNA is a double helix â¦ or twisted ladder.
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A firefighter, also known as a fireman, is a highly skilled man or woman who works to combat and extinguish fires. They also take steps to prevent fires, act as emergency medical technicians (EMT) and investigate the causes of fires. A firefighter is almost always the first official on the scene of fires, car accidents, or other emergencies, which is why they are also sometimes called first responders..