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Golden rice prevent……….
a) scurvy                                 
b) rickets
c) anemia                    
d) blindness

d

Explanation: golden rice contain beta carotene, a precursor of Vit. A



Which of the following is used for bioremediation?
a) virus                                   
b) bacteria
c) fungi                                   
d) algae:

b

Bacteria are modified by genetic engineering method to produce……
a) vitamins                  
b) antibiotics
c) hormones                
d) all of these

d

Explanation: human insulin was produced by genetically modified E. coli



Which of the following bacteria are decomposers?
a) saprophytic           
b) parasitic
c) symbiotic                
d) all of these:

a

Which of the following are involved in the fixation of nitrogen in the roots of leguminous plants?
a) virus                                   
b) bacteria
c) fungi                                   
d) algae

b

Which of the following help the herbivores in the digestion of cellulose?
a) virus                                   
b) bacteria
c) fungi                                   
d) algae

b

Explanation: bacteria produce cellulase enzyme in the gut of herbivores



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