A Mutant of Rhizobium Leguminosarum Is Able to Survive and Reproduce

question 58

Multiple Choice

A mutant of Rhizobium leguminosarum is able to survive and reproduce in the laboratory outside of plant roots, but can no longer initiate root nodule formation. What type of genes are most likely mutated in this mutant?

• A) rhz genes
• B) myc genes
• C) nif genes
• D) nod genes

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Definitions:

Demand Curve

A graphical representation showing the relationship between the price of a good or service and the quantity demanded at various prices.

Quantity Demanded

The specific amount of a good or service consumers are willing to buy at a given price point, holding all else constant.

Quantity Supplied

The total amount of a good that producers are willing to sell at a given price over a specific time period.

Shortage

A situation in which demand for a good or service exceeds the available supply at a specific price.