Question

what color flowers on garden pea plants will the f1 generation exhibit if a purebred purple flower is crossed with a purebred white flower?
entirely white
entirely purple
pink and white
light purple

Explanation:

In Mendelian genetics, when a purebred (homozygous) purple - flowered pea plant (let's assume the genotype is \(PP\), where \(P\) is the dominant allele for purple) is crossed with a purebred (homozygous) white - flowered pea plant (genotype \(pp\), where \(p\) is the recessive allele for white). Using the Punnett square method:

Gametes of purple parent (\(P\))	Gametes of white parent (\(p\))
\(P\)	\(Pp\)

All of the \(F_1\) generation will have the genotype \(Pp\). Since the purple allele (\(P\)) is dominant over the white allele (\(p\)), the \(F_1\) generation will exhibit the dominant trait.

Answer:

B. entirely purple