Time-saving video on the circulatory system. The circulatory system transports nutrients and blood cells to and from cells throughout the body. The circulatory systems includes veins, arteries and capillaries.
Ribosomal RNA (rRNA) is found in the cell's ribosomes, the specialized structures that are the sites of protein synthesis). Transfer RNA (tRNA) found in the cytoplasm which carries amino acids to the ribosomes for incorporation into a 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.