In totmato, genotype aabbcc produces 100g tomatoes and AABBCC produces 160g tomatoes. What is contribution of each polygene in the production of tomatoes :-

Options

A. 10 g
B. 20 g
C. 30 g
D. 40 g

Answer

To solve the problem of determining the contribution of each polygene in tomato weight production, we can follow these steps:

### Step-by-Step Solution

1. **Identify the Genotypes and Their Weights**:
- The genotype **aabbcc** produces **100 grams** of tomatoes.
- The genotype **AABBCC** produces **160 grams** of tomatoes.

2. **Determine the Difference in Weight**:
- Calculate the difference in weight between the homozygous dominant and homozygous recessive genotypes:
\[ \text{Difference} = \text{Weight of AABBCC} - \text{Weight of aabbcc} = 160 \text{ grams} - 100 \text{ grams} = 60 \text{ grams} \]

3. **Count the Number of Contributing Alleles**:
- Each genotype consists of **6 alleles** (2 alleles for each of the 3 genes: A, B, and C).

4. **Calculate the Contribution of Each Polygene**:
- The contribution of each polygene can be calculated by dividing the total difference in weight by the total number of alleles:
\[ \text{Contribution per polygene} = \frac{\text{Difference}}{\text{Total number of alleles}} = \frac{60 \text{ grams}}{6} = 10 \text{ grams} \]

5. **Conclusion**:
- Therefore, the contribution of each polygene in the production of tomatoes is **10 grams**.