The monomers of DNA and RNA are nucleotides, which are made up of a phosphate group, a five-carbon sugar and a nitrogenous base. In DNA, the nitrogenous bases are adenine, cytosine, guanine and thymine. In RNA, the nitrogenous bases are adenine, guanine, cytosine and uracil.Continue Reading
DNA and RNA is a polymer, or macromolecule, made up of many similar smaller molecules covalently bonded together. These smaller molecules are called monomers, and the specific monomers vary depending on the macromolecule (protein, carbohydrates or nucleic acids). Because DNA and RNA are nucleic acids, the monomers that form them are nucleotides, which are molecules made up of a nitrogenous base, a five-carbon sugar and a phosphate group. According to About, these nucleotides are covalently bonded together when the nitrogenous base of one nucleotide corresponds with the nitrogenous base of another nucleotide.
According to How Stuff Works, the four nitrogenous bases fall into two categories: purines and pyrimidines. The purines are double-ringed, and the pyrimidines are single-ringed. When a nucleotide bonds to another nucleotide, a purine base and a pyrimidine base hook up. Adenine pairs up with thymine, and cytosine always pairs up with guanine. After they bond, the nucleotides form the double helix of DNA.Learn more about Molecular Biology & DNA
The subunits of DNA and RNA are nucleotides. A nucleotide is made up of a phosphate group bonded to a sugar, which is then bound to a nitrogenous base. Both DNA and RNA consist of four types of nitrogenous bases.Full Answer >
Thymine is a nitrogenous base that is found in DNA molecules but not in RNA molecules, according to Vision Learning. Instead of thymine, RNA molecules utilize uracil.Full Answer >
DNA and RNA are somewhat similar organic molecules, both involved in the storage and transfer of genetic information. According to About.com, DNA’s primary function is to store genetic information over the long term, while RNA’s primary function is to transfer this information to the ribosomes, where proteins are made. Because they perform different functions, they have different structures, chemistry and characteristics.Full Answer >
The most basic difference between DNA polymerase and RNA polymerase is that DNA polymerase is used in the replication of DNA, while the RNA polymerase transcribes DNA to RNA. DNA polymerase also makes fewer mistakes than RNA polymerase so the replicated DNA is more accurate than newly transcribed RNA.Full Answer >