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.
Thus, DNA can also be found in the mitochondria and chloroplasts. Whereas, RNA can be found anywhere in the cell including the nucleus. Note that RNA are made in the nucleus through the process called transcription, The first made RNA is called a pre-RNA. The pre-RNA is processed by an enzyme call spliceosome.