During the Initiation of Nitrogen-Fixation Nodules,how Do the Rhizobium Bacteria

question 28

Multiple Choice

During the initiation of nitrogen-fixation nodules,how do the Rhizobium bacteria enter into the cortex of the root?

• A)through the plasmadesmata of the root hairs
• B)via the apoplastic pathway
• C)using proton pumps
• D)through a membrane tube called an infection thread
• E)by repeated cell divisions

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