A female fly is heterozygous for hairy body (hb), fluted wings (fl), and detached wing veins (dt). This fly is test-crossed, and the resulting progeny are listed in the following table. Phenotype hb fl + + + fl dt hb + dt + + dt fl + hb fl + dt hb + + Total + Number of gametes 60 65 56 372 376 6 62 1,000 What is the order of the three genes? Ohb fl dt hb dt fl fl hb dt Cannot be determined by the data

Human Anatomy & Physiology (11th Edition)
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A female fly is heterozygous for hairy body (hb), fluted wings (fl), and detached wing veins (dt). This fly is test-crossed, and the resulting progeny are listed in the following table.

| Phenotype  | Number of gametes |
|------------|-------------------|
| hb fl dt   | 60                |
| + fl dt    | 65                |
| + + +      | 56                |
| hb + dt    | 372               |
| + fl +     | 376               |
| hb fl +    | 3                 |
| + + dt     | 6                 |
| hb + +     | 62                |
| **Total**  | **1,000**         |

**What is the order of the three genes?**

- ○ hb fl dt
- ○ hb dt fl
- ○ fl hb dt
- ○ Cannot be determined by the data

The table shows the number of progeny with different combinations of the phenotypes. The order of genes can be inferred based on the number of recombination events indicated by the phenotype distributions.
Transcribed Image Text:A female fly is heterozygous for hairy body (hb), fluted wings (fl), and detached wing veins (dt). This fly is test-crossed, and the resulting progeny are listed in the following table. | Phenotype | Number of gametes | |------------|-------------------| | hb fl dt | 60 | | + fl dt | 65 | | + + + | 56 | | hb + dt | 372 | | + fl + | 376 | | hb fl + | 3 | | + + dt | 6 | | hb + + | 62 | | **Total** | **1,000** | **What is the order of the three genes?** - ○ hb fl dt - ○ hb dt fl - ○ fl hb dt - ○ Cannot be determined by the data The table shows the number of progeny with different combinations of the phenotypes. The order of genes can be inferred based on the number of recombination events indicated by the phenotype distributions.
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