The classic experiments performed by Creighton and McClintock in Maize
A)provided the initial evidence for genetic recombination.
B)provided evidence that genes located on the same chromosome do not assort independently.
C)allowed for the establishment of the first genetic map.
D)provided evidence for the physical exchange of genetic material between homologues.

Question

Quizplus · Accepted Answer

Creighton and McClintock's experiments involved studying the inheritance of two different colored maize kernels, which were located on the same chromosome. They observed that in some offspring, the colors were not inherited together, indicating that there had been a physical exchange of genetic material between homologous chromosomes (i.e. crossing over). This provided evidence for genetic recombination and the physical basis of gene linkage.

The Classic Experiments Performed by Creighton and McClintock in Maize