Question

when mendel crossed a true breeding purple flower plant with a true breeding white flower plants, what percent of the offspring were white? 0 50 100 75 25

Explanation:

Step1: Recall Mendel's Experiment

Mendel's experiments with pea plants: True - breeding purple (let's say genotype \(PP\)) and true - breeding white (genotype \(pp\)) flower plants. When crossed (\(PP\times pp\)), the offspring will have the genotype \(Pp\).

Step2: Determine Phenotype of Offspring

The allele for purple flower (\(P\)) is dominant over the allele for white flower (\(p\)). So, the genotype \(Pp\) will express the purple flower phenotype. So, the number of white - flowered offspring is 0. To find the percentage, we use the formula \(\text{Percentage}=\frac{\text{Number of white - flowered offspring}}{\text{Total number of offspring}}\times100\). Since the number of white - flowered offspring is 0, the percentage is \(0\%\).

Answer:

0 (corresponding to the option with 0)