Show key to heredity found foun I 1 by the busy lerl till us scientists working to solve tin mysteries of heredity have be beo given a key to many of their pro p terns with thy discovery ot of gim chromosome la in the salivary glan gi of the yeast fly says Pat hilad magadine some 70 times nor bonal size this oversized over sized model of 0 axel rieu clel brings into clearness the genes lie held d ther thereon it Is the genes in which the e KW it 41 of fists have the great greatest late interra since they are the u unita nits cont 0 heredity arranged in long on each chromosome a complete I 1 10 t la Is contained in each cell I 1 and tier F fore the giant chromosome la i large scale model or of nil all its lial brothers in the case of the y jeaa fly it is thought that between 20 r and genes are contain ael li each cell and since tile the ord a chromosome Is only 15 one bun red thousandths of an inch long it b r easy to see the minuteness of 0 elc tad gene there is now p proof f 0 tt I 1 existence of genes and a rew few ol 01 these there have been individually id lienol ell fled each one has its In dIvIdu function such as controlling tin colot color of the eyes in the human or tit formation of the black speck unit udde the wing of the fly etc |