Question

when mendel crossed purebred purple flowering plants (pp) with purebred white flowering plants (pp), what were the flower colors of the resulting offspring?
25 percent white and 75 percent purple
50 percent white and 50 percent purple
100 percent purple
100 percent white

Explanation:

The purple - flower allele (P) is dominant over the white - flower allele (p). When purebred purple (PP) is crossed with purebred white (pp), all offspring will have the genotype Pp. Since the presence of the dominant P allele results in purple flowers, all offspring will be purple.

Answer:

100 percent purple