constitutional DNAListen to pronunciation(KAWNT-stuh-TOO-shuh-nul...)The DNA in germ cells (egg and sperm cells that join to form an embryo). Constitutional DNA is the source of DNA for all other cells in the body. Also called germline DNA.Search NCI's Dictionary of Cancer TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#