This report describes our initial attempts at the molecular characterization
of a maize controlling element.
it to detect changes at a locus where & elements are found.
presence are indicated by changes in the restriction patterns, but there is as
yet no information on the physical nature of the controlling elements nor on
the kinds of rearrangements they cause.
McClintock provided extensive evidence for the physical presence of controlling
elements in the 1951 Cold Spring Harbor Symposium.
We have prepared a cDNA probe and used
Evidence of their
It should be remembered that Barbara