HIV and Women. Highlights. The early symptoms of HIV are sometimes very mild and can be easily dismissed as cold and flu symptoms. Early HIV symptoms include swollen glands, rashes, infections, and low grade fevers. You should get tested for HIV if youâre concerned that you have been exposed to it.
A nucleotide is composed of three distinctive chemical sub-units: a five-carbon sugar molecule, a nitrogenous baseâwhich two together are called a nucleosideâand one phosphate group. With all three joined, a nucleotide is also termed a nucleoside monophosphate.
Components of DNA. DNA is a polymer. The monomer units of DNA are nucleotides, and the polymer is known as a polynucleotide.. Each nucleotide consists of a 5-carbon sugar (deoxyribose), a nitrogen containing base attached to the sugar, and a phosphate group.There are four different types of nucleotides found in DNA, differing only in the nitrogenous base.The four nucleotides are given one letter abbreviations as shorthand for the four bases.he monomer units of DNA are nucleotides, and the polymer is known as a polynucleotide.. Each nucleotide consists of a 5-carbon sugar (deoxyribose), a nitrogen containing base attached to the sugar, and a phosphate group.