Question

Two purple flowers (Bb) are bred with each other in the same garden. What are the odds that red (BB) and blue (bb) flowers will occur in the second generation ?

Answer 1

This situation is an example of incomplete dominance. When Both purple flowers (Bb) will breed then the percentages of their offspring will  be as follow:
25% red (BB)
25% blue (bb)
50% purple (Bb)
The explanation can be seen through a punnett square where you can come up to an answer of 1(BB); 2(Bb); and 1(bb).