51.
Which of the following micro-organism causes diseases like polio and chicken pox?

53.
Which bacteria cause the greatest harm in the food industry?

54.
Bacteria divides by

55.
Important plant diseases like fire-blight and crown all are caused by

56.
In ________ cells the genetic material is without any nuclear membrane covering and is directly submerged in the cytoplasm.

57.
Cyanobacteria are also known as

58.
Branch of biology which deals with the study processing and preservation of food is called

59.
A viral species is a group of viruses that has

60.
The litmus paper utilized in the chemical laboratories is made of :

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