Triops is a genus of small crustaceans in the order Notostraca (tadpole shrimp). Some species are considered living fossils, with a fossil record that reaches back to the late Carboniferous, 300 million years ago.
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).
There are 3 main chemical components of DNA. They are phosphate, a sugar called deoxyribose and a nitrogenous base (adenine, thymine, cytosine or guanine). These three compone â¦ nts form a nucleotide.Deoxyribose contains 5 carbon atoms (1', 2', 3', 4', 5') in its structure.he three components that create a DNA nucleotide are a phosphate group, a nitrogenous base [this will be either Adenine, Guanine, Cytosine, or Thymine], and a Sugar [deoxyrib â¦ ose, which is how we get the D in DNA]. 5 people found this useful. Rhonda Pittman.