Answer:
There is a 50% probability of producing pink flowers.
Explanation:
A dominant trait can be described as a trait that masks the effect of a recessive trait. A recessive trait can be described as a trait that is suppressed by a dominant trait.
Homozygous means that both alleles of a gene are similar whereas heterozygous means that the alleles of a gene are different.
Let's consider pink to be a dominant trait and white to be a recessive trait. Consider the pink flower to be heterozygous (RR') and the white flower to be recessive and hence homozygous (R'R'). When these plants are cross-bred, there will be a 50% chance that the offsprings will be white coloured and 50% chance that the offsprings will be heterozygous and will have pink colour.