What are the three common parts of a nucleotide?
Question
What are the three common parts of a nucleotide?
Solution
The three common parts of a nucleotide are:
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A phosphate group: This is a molecule in the nucleotide which contains phosphorus and oxygen. It is responsible for the formation of the structure of the DNA strand through the creation of phosphodiester bonds.
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A sugar molecule: This is also known as a pentose sugar. In DNA, the sugar is deoxyribose, and in RNA, the sugar is ribose. The sugar molecule is connected to the phosphate group and to the nitrogenous base.
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A nitrogenous base: This is a molecule that contains nitrogen and has the ability to form hydrogen bonds with another nitrogenous base. This base can be either a purine (adenine and guanine) or a pyrimidine (cytosine, thymine, or uracil). The sequence of these bases determines the genetic code.
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