The predominant cells in blood are the red blood cells (RBC) which contains a protein called hemoglobin. Hemoglobin is the principal determinant of the color of blood. Arterial blood and capillary blood are bright red, as oxygen imparts a strong red color to the heme group.
RNA is assembled as a chain of nucleotides, that is usually  single-stranded. In eukaryotic cells, it can be found in the  nucleus and cytoplasm. Edit. Share to: Lsilvstew. 2,538 Contributions. Answered Most Recently. In Genetics.
1 Adenine and guanine are both found in DNA and RNA. 2  Cytosine, thymine and uracil are pyrmidines (contains a six membered ring of carbon and nitrogen).  Cytosine is found in both DNA and RNA, but thymine is only found in DNA and uracil is only found in RNA.