What is the probability of getting a pea plant with recessive green seed color when two heterozygous pea plants,both having the dominant yellow-seeded phenotype,are crossed with each other?

Question

Quizplus · Accepted Answer

When two heterozygous pea plants with dominant yellow-seeded phenotype are crossed, their genotypes would be Yy x Yy. The Punnett square for this cross would be:

|   | Y | y |
|---|---|---|
| Y | YY | Yy |
| y | Yy | yy |

From the Punnett square, we can see that there is a 1/4 (or 25%) chance of getting a pea plant with recessive green seed color (yy genotype). Therefore, the answer is B) 1 in 4.

What Is the Probability of Getting a Pea Plant with Recessive