A nucleic acid that carries the genetic information in the cell and is capable of self-replication and synthesis of RNA. DNA consists of two long chains of nucleotides twisted into a double helix and joined by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine. The sequence of nucleotides determines individual hereditary characteristics.
blood cells in the body that fights infections.
blood cells that carry oxygen around the body and remove carbon dioxide and other waste products
blood group that has no antigens
You inherit blood group from your ...
part of your body's natural defences against invading substances such as germs.
protein molecules found on the surface of red blood cells
blood is taken from one person and given to another