Nucleic acids, which include DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), are made from monomers known as nucleotides. Each nucleotide has three components: a 5-carbon sugar, a phosphate group, and a nitrogenous base.If the sugar is deoxyribose, the polymer is DNA.If the sugar is ribose, the polymer is RNA.ucleic acids, which include DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), are made from monomers known as nucleotides. Each nucleotide has three components: a 5-carbon sugar, a phosphate group, and a nitrogenous base.
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Socket Shoulder Bolts: Alloy Steel, Metric. larger image. This type of socketed screw, often called a âstripper boltâ, is used for a wide range of punch and die operations. Holo-Kromeâs shoulder screws are commonly used as fulcrums or pivots in machine designs that involve links, levers or other oscillating parts.