according to the chart above, which of the following mutations would lead to a possible change in the phenotype of the organism?

refer to the attachment !

answer 1 : therefore:   crossing results in 50% (dominant homozygote) and 50% (dominant heterozygote).

answer 2 : therefore:   crossing results in 25% (dominant homozygote), 50% (dominant heterozygote) and 25% (homozygous recessive).

answer 3 : therefore:   crossing results in 100% (homozygous recessive).