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.
Both DNA and RNA are macromolecules that consist of long chains of nucleotides. Both contain the specific nucleotide bases adenine, guanine and cytosine, although the fourth base differs between DNA and RNA. Both molecules are found in the cell's nucleus, but RNA may also be found in the cytoplasm.