In Drosophila melanogaster, what percentage of recombination is shown between the genes white and yellow, and what percentage of linkage is shown between the genes white and miniature wing, respectively?

Options

A. 98.7% and 62.8 %
B. 1.3 % and 37.2%
C. 1.3 % and 62.8%
D. 98.7% and 37.2%

Answer

To solve the question regarding the percentage of recombination between the genes white and yellow, and the percentage of linkage between the genes white and miniature wing in Drosophila melanogaster, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Genes and Their Distances**:
- We need to analyze the genes in question: white, yellow, and miniature wing. The distances between these genes will determine the recombination and linkage percentages.

2. **Recombination Percentage Between White and Yellow**:
- It is stated that the recombination percentage between the genes white and yellow is approximately **1.3%**. This low percentage indicates that these genes are located far apart on the chromosome, leading to a lower likelihood of recombination occurring between them.

3. **Linkage Percentage Between White and Miniature Wing**:
- The linkage percentage between the genes white and miniature wing is approximately **62%**. This higher percentage suggests that these genes are located closer together on the chromosome, resulting in a higher frequency of linkage.

4. **Conclusion**:
- Therefore, the final answers to the question are:
- Recombination percentage between white and yellow: **1.3%**
- Linkage percentage between white and miniature wing: **62%**

### Final Answer:
- Recombination between white and yellow: **1.3%**
- Linkage between white and miniature wing: **62%**

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