Osphena Â® should not be used if you have unusual vaginal bleeding, have or have had certain types of cancers (including cancer of the breast or uterus), have or have had blood clots, have had a stroke or heart attack, have severe liver problems, are allergic to Osphena Â® or any of its ingredients, or think you may be pregnant.
DNA structure. DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C).The order of these bases is what determines DNA's instructions, or genetic code.NA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C).
DNA or Deoxyribonucleic acid is a polymer that consists of monomers which have three components - a sugar (Ribose), a base (A,C,G,T) and a phosphate. Two such strands come together by virtue of hydrogen bonds between bases to form the double helical DNA structure. Now, these bases are hydrophbic, that is, they do not want to come in contact with water. This is ensured by the unique double hellical structure of DNA.