Molecular structure of DNA. The basic unit of DNA is the nucleotide, consisting of a phosphate group, a sugar molecule (deoxyribose) and one of four nucleobases (also known as bases): adenine (A), thymine (T), guanine (G) or cytosine (C).
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Highest areas for salaries include: 1  Massachusetts with a mean average salary of $201,970. 2  New York with a mean average salary of $199,650. 3  Florida with a mean average salary of $196,200. 4  California with a mean average salary of $191,550. 5  Illinois with a mean average salary of $165,020.