Microbes in Hum...

Which one of the following nitrogen fixing root nodule symbiotic is associated with the trees of Alnus and Casuarinas?

______ is a non-symbiotic aerobic nitrogen fixer.

Methanogenic bacteria are not found in

Choose the correct answers from the alternatives given.
A free-living bacterium capable of fixing nitrogen is:

Statement 1 : Besides curdling of milk, LAB also improve its nutritional quality by increasing vitamin $$B_{12}$$.
Statement 2 : LAB, when present in human stomach, check disease causing microbes. 

 Identify the blank spaces A, B, C and D in the following table and select the correct answer. 

Select the correct option to fill up the blanks.
(i) _______ are used in detergent formulations and are helpful in removing oily stains from the laundry.
(ii) _______ are ripened by growing Penicillium roqueforti on them.
(iii) ______ are produced without distillation whereas,   are produced by distillation of the fermented broth.
(iv) ______ antibiotic was used to treat American soldiers wounded in world war II.
(v) _______ is also called as kusht rog. 

Match different organisms in column I with their uses in column II and select the correct answer from the given codes.

Which one of the following combinations of organisms are responsible for the formation and flavour of yogurt?

Which of the following antibiotics was extensively used to treat American soldiers wounded in World War II?