A virulent bacteriophage is used to infect a prototrophic bacterial culture. Phages are collected from the culture and are used to infect a new bacterial strain that has several auxotrophies. After infection, rare prototrophs are found: $$\begin{array} { l l }
\mathrm { met } ^ { + } \text {leu } ^ { + } & 0 \
\mathrm { met } ^ { + } \mathrm { pro } ^ { + } & 1 \
\mathrm { met } ^ { + } \mathrm { his } ^ { + } & 0 \
\mathrm { pro } ^ { + } \mathrm { leu } ^ { + } & 2 \
\mathrm { pro } ^ { + } \mathrm { his } ^ { + } & 0 \
\mathrm { leu } ^ { + } \mathrm { his } ^ { + } & 1
\end{array}$$ How are the auxotrophy genes organized on the bacterial chromosome?

Question

A virulent bacteriophage is used to infect a prototrophic bacterial culture. Phages are collected from the culture and are used to infect a new bacterial strain that has several auxotrophies. After infection, rare prototrophs are found: $$\begin{array} { l l } 
\mathrm { met } ^ { + } \text {leu } ^ { + } & 0 \
\mathrm { met } ^ { + } \mathrm { pro } ^ { + } & 1 \
\mathrm { met } ^ { + } \mathrm { his } ^ { + } & 0 \
\mathrm { pro } ^ { + } \mathrm { leu } ^ { + } & 2 \
\mathrm { pro } ^ { + } \mathrm { his } ^ { + } & 0 \
\mathrm { leu } ^ { + } \mathrm { his } ^ { + } & 1
\end{array}$$ How are the auxotrophy genes organized on the bacterial chromosome?

Quizplus · Accepted Answer

The Answer of A virulent bacteriophage is used to infect a prototrophic bacterial culture. Phages are collected from the culture and are used to infect a new bacterial strain that has several auxotrophies. After infection, rare prototrophs are found: $$\begin{array} { l l } 
\mathrm { met } ^ { + } \text {leu } ^ { + } & 0 \
\mathrm { met } ^ { + } \mathrm { pro } ^ { + } & 1 \
\mathrm { met } ^ { + } \mathrm { his } ^ { + } & 0 \
\mathrm { pro } ^ { + } \mathrm { leu } ^ { + } & 2 \
\mathrm { pro } ^ { + } \mathrm { his } ^ { + } & 0 \
\mathrm { leu } ^ { + } \mathrm { his } ^ { + } & 1
\end{array}$$ How are the auxotrophy genes organized on the bacterial chromosome?

A Virulent Bacteriophage Is Used to Infect a Prototrophic Bacterial