Answer :
Final answer:
When a Ww white-petalled flower is crossed with a ww yellow-petalled flower, the offspring have a 50% chance of being Ww (white petals) and a 50% chance of being ww (yellow petals).
Explanation:
When crossing a Ww flower (white petals) with a ww flower (yellow petals), we can predict the offspring genotypes and phenotypes using a Punnett square. In this example, white petals are dominant to yellow. The possible genotypes that result from this cross are Ww (heterozygous white) and ww (homozygous yellow). Consequently, the phenotypes would be 50% white-petalled flowers and 50% yellow-petalled flowers, since each genotype has an equal chance of occurring. This means for the offspring, there is a 50% chance for the phenotype of white petals and a 50% chance for yellow petals.
