The following table lists 4 bacterial strains that are partial diploids for lac operon genes. Given the activity of beta-galactosidase measured for each strain in the absence (-lac) or presence (+lac) of lactose, complete the table by choosing the appropriate symbol (+, -, C, S) to indicate the allele of the gene or site missing from the table (blue numbers). + = wildtype, - = null mutation, c = constitutive, s =super repressor chromosome plasmid B-gal act. strain 10 Z A 1 C B 3 4 + C + 6 D 9 + 1 [Select] 3 [Select] 5 [Select] 7 [Select] 9 [Select] I 0 2 + + 5 + - Z -lac + 0.062 + 0.003 7 8 0.062 10 + 0.003 2 [Select] 4 [Select] 6 [Select] 8 [Select] 10 [Select] +lac 0.058 0.004 0.117 0.060

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**Genetics of Lac Operon in Partial Diploid Bacterial Strains**

The following table lists 4 bacterial strains that are partial diploids for lac operon genes. Given the activity of beta-galactosidase measured for each strain in the absence (−lac) or presence (+lac) of lactose, complete the table by choosing the appropriate symbol (+, −, C, S) to indicate the allele of the gene or site missing from the table (indicated by blue numbers).

- **+** = wildtype
- ** -** = null mutation
- **c** = constitutive
- **s** = super repressor

### Table Layout

The table is divided into sections:

1. **Strain Identification**: Marked as A, B, C, and D.
2. **Chromosomal Genes**: Includes columns for I, O, and Z.
3. **Plasmid Genes**: Includes columns for I, O, and Z.
4. **Beta-galactosidase Activity (β-gal act.)**: Measured in the presence and absence of lactose.

Each strain has different combinations of alleles in the chromosomal and plasmid genes.

### Table Details

| Strain | Chromosome          | Plasmid             | β-gal act.   | 
|-------|----------------------|---------------------|--------------|
|       | I   | O | Z           | I   | O | Z        | -lac | +lac |
| A     | 1   | c | +           | 2   | + | +        | 0.062 | 0.058 |
| B     | 3   | 4 | +           | +   | 5 | +        | 0.003 | 0.004 |
| C     | -   | 6 | +           | 7   | 8 | +        | 0.062 | 0.117 |
| D     | 9   | + | +           | -   | 10 | +        | 0.003 | 0.060 |

### Symbols to Fill

You are required to fill the symbols in place of blue numbers (1-10 spots) using a dropdown list provided for each number.

Dropdown fields provided for each number are to select the correct allele symbol, ensuring the understanding of genetic configurations and their influence on lactose metabolism in these
Transcribed Image Text:**Genetics of Lac Operon in Partial Diploid Bacterial Strains** The following table lists 4 bacterial strains that are partial diploids for lac operon genes. Given the activity of beta-galactosidase measured for each strain in the absence (−lac) or presence (+lac) of lactose, complete the table by choosing the appropriate symbol (+, −, C, S) to indicate the allele of the gene or site missing from the table (indicated by blue numbers). - **+** = wildtype - ** -** = null mutation - **c** = constitutive - **s** = super repressor ### Table Layout The table is divided into sections: 1. **Strain Identification**: Marked as A, B, C, and D. 2. **Chromosomal Genes**: Includes columns for I, O, and Z. 3. **Plasmid Genes**: Includes columns for I, O, and Z. 4. **Beta-galactosidase Activity (β-gal act.)**: Measured in the presence and absence of lactose. Each strain has different combinations of alleles in the chromosomal and plasmid genes. ### Table Details | Strain | Chromosome | Plasmid | β-gal act. | |-------|----------------------|---------------------|--------------| | | I | O | Z | I | O | Z | -lac | +lac | | A | 1 | c | + | 2 | + | + | 0.062 | 0.058 | | B | 3 | 4 | + | + | 5 | + | 0.003 | 0.004 | | C | - | 6 | + | 7 | 8 | + | 0.062 | 0.117 | | D | 9 | + | + | - | 10 | + | 0.003 | 0.060 | ### Symbols to Fill You are required to fill the symbols in place of blue numbers (1-10 spots) using a dropdown list provided for each number. Dropdown fields provided for each number are to select the correct allele symbol, ensuring the understanding of genetic configurations and their influence on lactose metabolism in these
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