A Lab Technician Has Four Strains of Bacteria A) Minimal Media with Leucine and Streptomycin
B) Minimal Media

question 8

Multiple Choice

A lab technician has four strains of bacteria. Although he forgot to label them, he knows that they include one F+ strain, one Hfr strain, one F' strain, and one F- strain. He observed the following results after plating these strains on different media. Which of the following plates can be used to identify the F- strain? $$\begin{array} { | l l l l l l | } \hline \text { strain } & \text { his } & g \text { gu } & \text { cys } & \text { leu } & \text { str } \\\mathrm { F } ^ { + } & + & + & + & - & + \\\mathrm { Hfr } & + & + & + & + & - \\\mathrm { F } ^ { \prime } & + & + & + & + & - \\\mathrm { F } & - & - & - & + & + \\\hline\end{array}$$

• A) minimal media with leucine and streptomycin
• B) minimal media with histidine, glutamate, and cysteine
• C) minimal media with histidine, glutamate, cysteine, and streptomycin
• D) complete media
• E) minimal media with streptomycin

Understand how different sensory inputs are processed in the brain.

Recognize the significance of the corpus callosum in interhemispheric communication.

Explain the concept of lateralization in the brain.

Describe the impact of brain damage on behavior and mental functions.

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A legal action where a single or a few plaintiffs sue on behalf of a larger group who are similarly affected.