The Rhizobium or Bradyrhizobium bacteria colonize the host plant's root system and cause the roots to form nodules to house the bacteria. The bacteria then begin to fix the nitrogen required by the plant.
Maybe c or d
Step by step:
1 one is correct.....he never think about linkage......later after chromosome mapping it was found that Mendel was lucky that they don't show much linkage !
Answer:
C. Prevents sir pollution
Explanation:
Because when cars a running they produce fumes which pollute our air. Also that is a car electric charger
