Calculation of Seeds with Dominant and Recessive Traits

Given information:
- Heterozygous round and Yellow seeded pea plants were selfed
- Total 800 seeds are collected

To calculate the total number of seeds with dominant and recessive traits, we need to first determine the ratio of dominant and recessive traits in the selfed plants.

Genotypic and Phenotypic Ratio in Selfed Pea Plants:
- The heterozygous round and yellow seeded pea plants have the genotype RrYy, where R represents round seed and Y represents yellow seed.
- During selfing, the possible gametes that can be formed are RY, Ry, rY, and ry.
- The F1 generation of selfed plants will have the genotype and phenotypic ratio of 9:3:3:1, which means that out of 16 possible combinations, 9 will have round and yellow seeds, 3 will have wrinkled and yellow seeds, 3 will have round and green seeds, and 1 will have wrinkled and green seeds.

Calculation:
- Out of 800 seeds, 9/16 will have round and yellow seeds, which is (9/16) x 800 = 450 seeds.
- Out of 800 seeds, 3/16 will have wrinkled and yellow seeds, which is (3/16) x 800 = 150 seeds.
- Out of 800 seeds, 3/16 will have round and green seeds, which is (3/16) x 800 = 150 seeds.
- Out of 800 seeds, 1/16 will have wrinkled and green seeds, which is (1/16) x 800 = 50 seeds.

Therefore, the total number of seeds with dominant trait (round and yellow seeds) is 450 + 150 = 600 seeds, and the total number of seeds with recessive trait (wrinkled and green seeds) is 50 seeds.

Conclusion:
- Out of the total 800 seeds collected from selfed heterozygous round and yellow seeded pea plants, 600 seeds have dominant traits (round and yellow seeds) and 50 seeds have recessive traits (wrinkled and green seeds).