Columbia subject headings:
Harvard subject headings:
Genetic regulation--Congresses
Insertion elements, DNA--Congresses.
McClintock, Barbara, 1902-1992
Mutagens--Congresses
Plant genetic regulation--Congresses.
Plant molecular genetics--Congresses.
Transposons--Congresses.
Princeton subject headings:
Genetic regulation--Congresses.
Insertion elements, DNA--Congresses.
Mutagens--Congresses.
Plant molecular genetics--Congresses.