DNA is the genetic material, in a double helix shape, used to make proteins. RNA is the single helix molecule that actually turnd DNA instructions into proteins. ATP is the main storage unit of chemical energy in the cell. All this is a basic comparison you should have learned in 9th grade Biology.
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It is because Prokaryotic cells has a unicellular structure compared to Eukaryotic cells which has a Multicellular structure.
Some diseases are caused by mutations that are inherited from the parents and are present in an individual at birth, like sickle cell disease.
<span>Stents help keep coronary arteries open and reduce the chance of a <span>heart attack.</span></span><span><span>The stent holds the artery open and allows blood to flow more freely.</span> </span>