In Using a Cloning Vector with a Multiple Cloning Site

question 17

Multiple Choice

In using a cloning vector with a multiple cloning site spliced into the front part of the lacZ gene, production of beta-galactosidase, as shown by the blue color when grown on Xgal, indicates that:

• A)an insert has been placed into the multiple cloning site.
• B)the cells are antibiotic sensitive.
• C)the cells lack plasmids.
• D)the cells have not been successfully transformed.
• E)there is no insert in the multiple cloning site.

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Definitions:

Herfindahl Index

An economic indicator used to assess the level of concentration and competition within an industry, calculated by summing the squares of the market shares of all firms in the market.

Four-Firm Concentration Ratio

An indicator measuring the total market share controlled by the four largest firms within an industry, used to assess the level of competition.

Merged

The process of combining two or more entities into one, typically referring to businesses or corporations uniting to form a single new entity.

Herfindahl Index

An assessment of how large companies are in proportion to their industry, serving as a sign of competitive dynamics.