Context: This passage describes the ground spot color trait in watermelon plants:
Watermelon plants grow with their fruit resting on the ground. Over time, the bottom of each fruit develops a white or yellow spot called a ground spot. In some types of watermelon plants, the color of the ground spot is an inherited trait.
In a group of watermelon plants, some individuals have a yellow ground spot and others have a white ground spot. In this group, the gene for the ground spot color trait has two alleles. The allele for a white ground spot (g) is recessive to the allele for a yellow ground spot (G).
This Punnett square shows a cross between two watermelon plants.
What is the expected ratio of offspring with a yellow ground spot to offspring with a white ground spot? Choose the most likely ratio.
A. 4:0
B. 3:1
C. 1:3
D. 0:4
E. 2:2
Pick the correct answer from the listed options and provide the letter of the selected option.
Answer: A