In garden pea , starch synthesis is regulated bye B and b alleles . Bb. genotype produces :

Options

A. Large sized round seeds.
B. Small sized wrinkled seeds.
C. Intermediate sized round seeds.
D. Large sized wrinkled seeds

Answer

To solve the question regarding the starch synthesis in garden pea regulated by the B and b alleles, we will follow these steps:

### Step-by-Step Solution:

1. **Understanding the Alleles**:
- In garden peas, the alleles for starch synthesis are represented as B (dominant) and b (recessive).
- The B allele produces larger starch grains, while the b allele produces smaller starch grains.

2. **Identifying the Genotype**:
- The genotype given is Bb, which indicates that it is heterozygous. This means it has one dominant allele (B) and one recessive allele (b).

3. **Exploring Incomplete Dominance**:
- The question indicates that starch synthesis follows the principle of incomplete dominance. In incomplete dominance, the phenotype of the heterozygous genotype (Bb) is an intermediate between the two homozygous phenotypes (BB and bb).
- Therefore, the Bb genotype will produce starch grains that are neither as large as those produced by the BB genotype nor as small as those produced by the bb genotype.

4. **Determining the Phenotype**:
- Since BB produces large starch grains and bb produces small starch grains, the Bb genotype will produce starch grains of intermediate size.
- The shape of the starch grains will be round because the round shape (associated with the B allele) is dominant.

5. **Conclusion**:
- Thus, the Bb genotype will produce starch grains that are of intermediate size and round in shape.

### Final Answer:
The Bb genotype produces intermediate-sized, round seeds.