When mendel performed mono-hybrid crosses with opposing traits (i.e. purple and white flowers), what did he find in the F1 generation?
a. He found that one of the traits was absent from the F1 generation
b. He found that one of the traits was only present in 25% of the F1 generation
c. He found that each trait was found in 50% of the F1 generation
d. He found an intermediate phenotype that had not been seen before in all of the F1 generation