You Have Performed the Following Mating Experiment Using Hfr and F-Strains

question 78

Multiple Choice

You have performed the following mating experiment using Hfr and F-strains of Escherichia coli: Hfr (thr⁺ leu⁺ gal⁺ strˢ) × F⁻ (thr⁻ leu⁻ gal⁻ strʳ) . Which of the following selective media would you use to score recombinant colonies?

• A) minimal medium
• B) minimal medium + streptomycin
• C) minimal medium + threonine
• D) minimal medium + streptomycin + threonine

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Definitions:

Psycholinguistic Theory

The view that language learning involves an interaction between environmental factors and an inborn tendency to acquire language.

Language Acquisition

The process by which humans gain the ability to perceive, produce, and use words to communicate.

Semanticity

The quality of language and signs to communicate meaning, where symbols or words have specific meanings.