Row Bacterium Result W reproduces slowly gene is destroyed X does not divide no protein made Y reproduces rapidly gene expressed, protein made in bulk Z los...
Question 1 Report
| Row | Bacterium | Result |
|---|---|---|
| W | reproduces slowly | gene is destroyed |
| X | does not divide | no protein made |
| Y | reproduces rapidly | gene expressed, protein made in bulk |
| Z | loses the plasmid | protein made in bulk |
The table shows what happens to an inserted gene inside engineered bacteria. Which row correctly describes the outcome that yields useful protein?
Answer Details
Useful protein is only obtained when the bacteria multiply and switch the gene on. The correct row describes a bacterium that reproduces rapidly so the gene is expressed and protein is made in bulk: rapid division copies the recombinant plasmid into millions of cells, each reading the gene to build the protein. Rows describing slow or absent division give no protein, and a bacterium that loses the plasmid loses the gene entirely, so it cannot make protein in bulk.
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