Show Key to Heredity Found by the Busy Scientist Scientists working to solve the mysteries of heredIty have been given a key to ninny many ot of their probe problems lems with the discovery of a giant chromosome In the salivary gland of the yeast ny fly says Pathfinder Magazine Some 70 times normal size this over sized model ot of cell brings Into IdentIfiable clearness the genes held thereon It is 18 the genes In which the Belen- Belen have the greatest Interest since they are the units unit controlling heredity Arranged In long strings on each chromosome a complete set Is contained In each cell and there there- tore fore the giant chromosome Is a scale large model ot of all Its smaller brothers In the case of at the yeast fly It Is thought that between 2000 and S genes are contained In each cell and since the ordinary chromosome is 18 only 15 one hundred thousandths ot of an Inch long it Is Ia etsy to see the minuteness of each gene There Is now proof of the existence of genes and a few of these have been Individually fled Each Bach one has its IndivIdual function such as controlling the color of the eyes In the human or the formation of the black speck under the wIng of the fly etc |