Can you please help me with the following question:
Two pure-breeding phlox plants were crossed, one with dark-blue flowers and the other with pink flowers. The F1 generation all had dark-blue flowers. When the F1 plants were crossed with each other, the F2 generation consisted of 348 plants: 202 with dark-blue flowers, 66 with light-blue flowers, 60 with red flowers, and 20 with pink flowers. Using this quantitative information propose an explanation of how the phlox flower color is controlled genetically? Please, provide full explanations to support your answers!