CHEDDER CHEESE: Pasteurised Milk, Salt, Starter Cultures, Non-Animal Rennet, Non Animal Lipase. HAM SLICE: Pork, WAter, Acidity Regulators (326, 262), Salt, Emulsifer (451), Sugar, Dextrose (Maize), Antioxidant (316), Sodium Nitrite (250), Colours (Sorghum Husk Extract 160b).
Nucleotides in DNA contain four different nitrogenous bases: Thymine, Cytosine, Adenine, or Guanine. There are two groups of bases: Pyrimidines: Cytosine and Thymine each have a single six-member ring. Purines: Guanine and Adenine each have a double ring made up of a five-atom ring attached by one side to a six-atom ring. The order of nucleotides along DNA polymers encode the genetic information carried by DNA.
DNA is made up of four bases: adenine (A), cytosine (C), thymine (T), and guanine (G). The order of these bases is called the DNA sequence. Whenever a particular base is present on one side, its complementary base is found on the other side. In the example above, see how the bases always occur in complementary pairs.