An aberrant corn plant gives the following recombination fre…

An aberrant corn plant gives the following recombination frequencies when test crossed: Location d-f  f-b    b-x x-y y-p Normal plant 5 18 23 12 6 Aberrant plant 5 2 2 12 6   The locus order is centromere-d-f-b-x-y-p. The aberrant plant is healthy, but produces fewer pollen grains than the control. Propose a hypothesis to account for the abnormal recombination frequencies and lower reproduction.