Imagine That You Have Set Up a Genetic Screen to Identify

question 4

Multiple Choice

Imagine that you have set up a genetic screen to identify E. coli mutants that cannot metabolize the amino acid tryptophan for energy. Beginning with a master plate containing many colonies, you prepare replica plates on medium with glucose or tryptophan as the only energy source. You would look for colonies that ________.

• A) cannot grow on either type of media
• B) can grow on both types of media
• C) can grow only on the plates with tryptophan
• D) can grow only on the plates with glucose

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Definitions:

Total Sales

The total revenue a company generates from selling its goods or services within a specific period.

Return On Investment

A performance measure used to evaluate the efficiency or profitability of an investment relative to its cost.

Minimum Required Rate

The lowest rate of return or discount rate that investors are willing to accept before investing in a project or financial asset.

Investment Opportunity

Any vehicle or asset that individuals or businesses can put money into in hopes of generating a financial return.