A. Rhizobium
B. Nitrosomonas
C. Nitrobacter
D. Pseudomonas
Related Mcqs:
- In Urea cycle __________ ammonia molecules combine with 1 CO2 molecule to form 1 molecule of urea.
A. 1
B. 2
C. 3
D. 4 - Which of the following is incorrect for the lysogenic cycle in life cycle of bacteriophage_____________?
A. Phage when gets incorporated with the bacterial chromosome is called prophage
B. The bacterium continues to live and reproduce normally
C. Lysogenic bacteria may get infected by the related phage
D. The cycle may convert into lytic type resulting from environmental exposure - In lysogenic cycle the process of spearation of phage DNA from the hosts chromosome and initiation of lytic cycle is called______________?
A. Lysis
B. Lysogeny
C. Induction
D. Adsorption - Chlorophyll molecule contrains __________ as central metal ion.
A. Fe2+
B. Mg2+
C. Zn2+
D. Cu2+ - A cofactor made of inorganic ion which is detachable is called__________________?
A. Prosthetic group
B. Coenzyme
C. Activator
D. Cofactor - The discease in which transmembrane carrier for the chloride ion is not produced is__________?
A. Hyperchloesterolemia
B. Cystic fibrosis
C. Severe combined immunodeficiency syndrome
D. AIDS - Which one of the following stage preceeds mitosis during cell cycle?
A. G1 phase
B. S phase
C. G2 phase
D. M phase - During rest the breathing occurs rhythmically at the frequency of _________ times per minute in human?
A. 16-30
B. 15-20
C. 5?10
D. 6?12 - Which of the following step occurs immediately after binding of Ca2+ with troponin molecule during muscle contraction.
A. Binding sites of actin get attached to the myosin head.
B. Troponin uncovers the actin binding sites.
C. Tropomyosin gets removed from the binding sites of actin filaments.
D. Ca2+ goes back inside sarcoplasmic reticulum. - Nitrogen is present in___________?
A. carbohydrates
B. proteins
C. lipids
D. carbonates
