A dihybrid heterozygous round, yellow seeded garden pea (Pisum sativum) was crossed with a double reccessive plant. What type of cross is this ?

Explanation

To solve the question regarding the type of cross between a dihybrid heterozygous round, yellow-seeded garden pea and a double recessive plant, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Genotypes of the Plants**:
- The first plant is a dihybrid heterozygous for two traits: round seeds (R) and yellow seeds (Y). Since it is heterozygous, its genotype is RrYy.
- The second plant is double recessive for both traits, meaning it has the genotype rryy.

...