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.Know More
About.com states that DNA stands for deoxyribonucleic acid, while RNA stands for ribonucleic acid. The difference in their names indicates the primary chemical difference between them, with RNA possessing the sugar ribose and DNA possessing deoxyribose. Ribose contains one more –OH group of atoms in each molecule than deoxyribose does, but it is missing a -H ion that is present in deoxyribose. DNA is susceptible to being damaged by ultraviolet rays, whereas RNA is somewhat resistant to damage from these rays. RNA molecules are susceptible to pH imbalances and do not remain stable when exposed to alkaline conditions, whereas DNA molecules remain stable under such conditions.
Structurally, the two look very different. As explained by About.com, RNA molecules are helically shaped, whereas DNA molecules take the form of a double helix. DNA molecules are able to produce RNA molecules by virtue of this double-sided design.Learn more about Molecular Biology & DNA
RNA and DNA are both nucleic acid macromolecules that are comprised of a set of monomers known as nucleotides. They also both contain purines and pyrimidines as their bases and contain pentose sugars as their backbones.Full Answer >
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.Full Answer >
Both DNA and RNA polymers are composed of monomers. These monomers are called nucleotides. A nucleotide has four parts; however, the monomers of DNA and RNA differ slightly from each other, thus giving the molecules different structures and functions.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 >