DNA is the acronym for deoxyribonucleic acid. DNA and RNA are the two types ofnucleic acids the code for genetic information. DNA is a double-helix molecule built from four nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C).Even though it codes for all the information that
Oxygen gas is colorless, odorless, and tasteless.It’s usually purified by fractional distillation of liquefied air, but the element is found in many compounds, such as water, silica, and carbon dioxide. Oxygen was the atomic weight standard for the other elements until 1961 when it was replaced by carbon 12. Oxygen made a good choice for […]