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.
RNA. RNA (ribonucleic acid) is a form of genetic material similar to DNA (deoxyribo nucleic acid) but differing in that RNA contains the sugar ribose not deoxyribose. RNA also differs in that it contains the base uracil in place of the base thymidine found in DNA. Due to these differences it invariably is unable to form a double helix as DNA is, but is able to pair with itself, forming complex secondary structures which aid it's function.