in peas, yellow seed color (y) is dominant to green seed color (y). a homozygous green seed pea plant is…

in peas, yellow seed color (y) is dominant to green seed color (y). a homozygous green seed pea plant is crossed with a heterozygous yellow seed pea plant. what is the predicted phenotypic ratio of the offspring based on seed color?\n50 percent yellow, 50 percent green\n50 percent yy, 50 percent yy\n100 percent yellow, 0 percent green\n100 percent yy, 0 percent yy
Answer
Explanation:
Step1: Determine genotypes of parents
Homozygous green is yy, heterozygous yellow is Yy.
Step2: Set up Punnett - square cross
| Y | y | |
|---|---|---|
| y | Yy | yy |
| y | Yy | yy |
Step3: Analyze phenotypes
Yy is yellow, yy is green. 2 Yy and 2 yy, so 50% yellow and 50% green.
Answer:
A. 50 percent yellow, 50 percent green