petechiae Tiny, flat red or purple spots in the skin or mucous membranes caused by bleeding from small blood vessels. Petechiae are a feature of the bleeding disorder PURPURA. Petechiae Tiny purple or red spots on the skin associated with endocarditis, resulting from hemorrhages under the skin's surface. Mentioned in: Endocarditis, Hantavirus Infections, Hemorrhagic Fevers, Idiopathic Thrombocytopenic Purpura
Monomers are the building blocks that make up nucleic acid. Also known as nucleotides, they are composed of a five-carbon sugar, a nitrogenous base and a phosphate group.
What are the monomers of DNA and RNA? 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 >.