To Map Genes of a Bacterial Strain, Conjugation Must Be

question 7

Multiple Choice

To map genes of a bacterial strain, conjugation must be interrupted at given times. Suppose you have Hfr cells of genotype a⁺b⁺c⁺d⁺e⁺str^R and F^- cells of genotype a^-b^-c^-d^-e^-str^S and you combine these two cultures in liquid medium in four blenders at time 0. After intervals of 3, 6, 9, and 12 minutes, you turn on successive blenders. This graph shows the results of plating the cultures of each blender. What is the correct order of the genes on this chromosome?

• A)a b c d e
• B)a c e b d
• C)b e c a (d is unknown)
• D)d a c e b
• E)b e c a d

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Definitions:

Acute Dystonic Reaction

A rapid onset of muscle contractions that can lead to involuntary twisting movements or abnormal postures.

Drooling

The unintentional spillage of saliva from the mouth, which can be due to various medical conditions or developmental stages.

Tardive Dyskinesia

A neurological disorder characterized by involuntary, repetitive body movements, often resulting from long-term use of antipsychotic medication.

Fluphenazine Decanoate

A long-acting antipsychotic medication used in the treatment of schizophrenia and other psychotic disorders.