Barbara McClintock won the Nobel Prize in 1983 when her ___ that genes in corn kernels could \"jump\" proved correct. . . . . . . . . .
A. conjecture . . . . . . . .
B. discourse . . . . . . . .
C. interjection . . . . . . . .
D. precursor
A. conjecture . . . . . . . .
B. discourse . . . . . . . .
C. interjection . . . . . . . .
D. precursor