Pea pods exist in the same colors as pea seeds, yellow and green. However, unlike pea seeds, green is dominant and yellow is recessive. Two pea plants both have one dominant and one recessive allele for pod color. Which choice correctly states what ratio of the offspring would be from a mating of the two plants?(1 point) Responses Three quarters of the plants would have yellow pods, and one quarter would have green pods. Three quarters of the plants would have yellow pods, and one quarter would have green pods. All of the plants would have green pods. All of the plants would have green pods. One quarter of the plants would have yellow pods, and three quarters would have green pods. One quarter of the plants would have yellow pods, and three quarters would have green pods. Half of the plants would have yellow pods, and half would have green pods.

Answer 1

To determine the ratio of offspring from two pea plants that each have one dominant (green) allele and one recessive (yellow) allele for pod color, we can use a Punnett square.

1. Let's denote the dominant allele for green pods as "G" and the recessive allele for yellow pods as "g".
2. Each parent plant has the genotype "Gg".

When we set up a Punnett square for the cross between two Gg plants, we get the following combinations:

          G         g
        ----------------
     G |    GG      Gg
        ----------------
     g |    Gg      gg

From the Punnett square, the offspring genotypes would be:

• 1 GG (homozygous dominant - green pods)
• 2 Gg (heterozygous - green pods)
• 1 gg (homozygous recessive - yellow pods)

This gives us the following ratio of phenotypes:

• 3 green pods (GG and Gg)
• 1 yellow pod (gg)

So the correct ratio of the offspring from this mating would be three quarters of the plants would have green pods, and one quarter would have yellow pods.

Therefore, the correct choice is: One quarter of the plants would have yellow pods, and three quarters would have green pods.