In pea plants, purple flowers are dominant over white flowers. Which Punnet square correctly shows the cross of a plant with white flowers and a plant that is heterozygous for purple flowers?

A. Aa,Aa, aa, aa
B. Aa,Aa, Aa,Aa
C. AA,Aa, Aa,aa
D. AA,AA, Aa,Aa
Is the answer D?

I don't agree with choice D.

which one then?

I need the answer help anyone????

how u know

To determine the correct Punnett square for the given scenario, we need to first understand the genetic makeup of the plants involved.

In pea plants, the gene responsible for flower color has two variants or alleles: "P" for purple flowers (dominant) and "p" for white flowers (recessive).

We are given that one parent has white flowers, so its genotype must be homozygous recessive (pp) since white flowers are only possible with two copies of the recessive allele.

The other parent is heterozygous for purple flowers, meaning it carries one copy of the dominant allele and one copy of the recessive allele (Pp).

Now, let's create a Punnett square to depict the possible combinations of alleles in the offspring.

P p
P | PP | Pp |
p | Pp | pp |

From the Punnett square, we can see that there are two possible genotypes for the offspring: PP (purple flowers) and Pp (purple flowers).

Therefore, the correct Punnett square for the cross of a plant with white flowers and a plant that is heterozygous for purple flowers is:

D. AA,AA, Aa,Aa