In a Root Nodule, the Gene Coding for Nitrogenase

question 18

Multiple Choice

In a root nodule, the gene coding for nitrogenase

• A)is inactivated by leghemoglobin.
• B)is absent in active bacteroids.
• C)is found in the cells of the pericycle.
• D)protects the nodule from nitrogen.
• E)is part of the Rhizobium chromosome.

---

Definitions:

Stimulus Discrimination

The ability of an individual to differentiate between similar stimuli and respond to them differently.

Selective Retention

The psychological process by which individuals remember information that is consistent with their beliefs and attitudes while forgetting or ignoring contradictory information.

Routine Problem Solving

The use of simple, habitual decision-making strategies in buying situations that are familiar and not considered to be of high importance.

Behavioral Learning

Behavioral learning theory suggests that learning is the result of conditioning, where behavior is shaped through reinforcement or punishment, leading to a change in behavior patterns.