Which of following organisms cannot fix nitrogen?
A. Azotobacter
B. Oscillatoria
C. Anabaena
D. Volvox
E. Nostoc
Choose the correct answer from the options given below:
Biocontrol agents and biofertilizers
Every question from past board papers on Biocontrol agents and biofertilizers, newest paper first. Open any question for its full worked answer.
NEET UG 2025 question paper (official, booklet 45)
Full paper →NEET UG 2022 question paper (official, booklet R6)
Full paper →-
Which one of the following produces nitrogen fixing nodules on the roots of Alnus ?
-
Breeding crops with higher levels of vitamins and minerals or higher proteins and healthier fats is called :
NEET UG 2021 question paper (official, booklet M4)
Full paper →-
Match List - I with List - II.
List - I | List - II
(a) Protoplast fusion | (i) Totipotency
(b) Plant tissue culture | (ii) Pomato
(c) Meristem culture | (iii) Somaclones
(d) Micropropagation | (iv) Virus free plants
Choose the correct answer from the options given below.
-
Which of the following is not an objective of Biofortification in crops ?
NEET UG 2020 question paper (official, booklet E1)
Full paper →-
The product(s) of reaction catalyzed by nitrogenase in root nodules of leguminous plants is/are :
NEET UG 2019 question paper (official, booklet P1)
Full paper →-
Select the correct group of biocontrol agents.
-
*Thiobacillus* is a group of bacteria helpful in carrying out :
-
Which of the following can be used as a biocontrol agent in the treatment of plant disease ?
NEET UG 2017 question paper (official, booklet B)
Full paper →-
Select the mismatch :
(1) Rhodospirillum - Mycorrhiza
(2) Anabaena - Nitrogen fixer
(3) Rhizobium - Alfalfa
(4) Frankia - Alnus
NEET UG 2016 Phase 1 question paper (official, booklet A)
Full paper →-
A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called :
NEET UG 2016 Phase 2 question paper (official, booklet ZZ)
Full paper →-
Interspecific hybridization is the mating of