The base of each cloud is flat and the top of each cloud has rounded towers. When the top of the cumulus clouds resemble the head of a cauliflower, it is called cumulus congestus or towering cumulus. These clouds grow upward and they can develop into giant cumulonimbus clouds, which are thunderstorm clouds.
Peptide Bond. Covalent bond between the nitrogen of the amino group of one amino acid and the carbon of the carboxyl group of a second amino acid, joining the 2 amino acids together in a peptide or protein.
They are cytosine, adenine, guanine, uracil and thymine. Each nucleotide contains one of the five organic bases. Guanine, cytosine and adenine are found in both DNA and RNA molecules, whereas thymine is found only in DNA and RNA contains only uracil of these five organic bases.All five of the bases comprises complex ring structure made up of nitrogen and carbon atoms.uanine, cytosine and adenine are found in both DNA and RNA molecules, whereas thymine is found only in DNA and RNA contains only uracil of these five organic bases. All five of the bases comprises complex ring structure made up of nitrogen and carbon atoms.