41.
Tobacco root exudates contains which chemical substances during induction of chemtotaxis against A. tumefaciens?

42.
The leaves of Pongamia glabra and Azadirachta indica reduces the population of

43.
Photosynthetic pigments found in the chloroplasts occurs in

44.
Which one is diploid?

45.
White blisters of crucifers' is caused by pathogen

46.
Scab is a result of

47.
The term virus was first time coined by

48.
When day light hours are increased, the rate of photosynthesis

49.
Which race of Ralstonia solanacearum cause disease in potato?

50.
Thylakoids possess photosynthetic units called