Question

a purple flower (pp) is crossed with a white flower (pp), what is the probability that the offsprings will phenotype will be white?
0 chances out of 4 (0%)
1 chance out of 4 (25%)
2 chances out of 4 (50%)
4 changes out of 4 (100%)

Explanation:

Step1: Determine parental gametes

The purple - flowered plant (PP) can only produce P gametes, and the white - flowered plant (pp) can only produce p gametes.

Step2: Create a Punnett - square

When we cross them, all the offspring will have the genotype Pp.

Step3: Determine phenotype

Since the P allele is dominant over the p allele, all offspring with the Pp genotype will have the purple phenotype. So, there are 0 white - flowered offspring out of 4.

Answer:

0 chances out of 4 (0%)