The specific relationship between a legume and its mutualistic Rhizobium strain probably depends on
A) each legume having a chemical dialogue with a fungus.
B) each Rhizobium strain having a form of nitrogenase that works only in the appropriate legume host.
C) each legume being found where the soil has only the Rhizobium specific to that legume.
D) specific recognition between the chemical signals and signal receptors of the Rhizobium strain and legume species.
E) destruction of all incompatible Rhizobium strains by enzymes secreted from the legume’s roots.
Legume root nodules.
The three stages of a specific immune response.
Integration of the F plasmid creates an Hfr strain
Accompanying Markers in Specific P1 Transductions
Dose-response relationship. As the dose of a drug increases, a maximal response or plateau is ...
The relationship between the number of stem cell divisions in the lifetime of a given tissue and the