Note 131 — THE INDIVIDUAL ORGANISM WITH REGARD TO FORM AND METABOLISM (continued 4)

This hypothesis was first suggested by Sutton and is at present held by orthodox Mendelians; but probably things are a little more complicated in reality, as seems to be shown by some facts in the behaviour of so-called “extracted recessives.” In Morgan’s Experimental Zoology, New York, 1907, a full account of the whole matter is given.