51.
Chlorophyll b is

52.
Viruses contain

53.
Teichoic acid found in

54.
Which of the following pair has haploid structures?

55.
The toxicity of zinc in soil is reduced by adding

56.
Plants use zinc as

57.
Plant nutrient critical for nitrogen fixation in legumes is

58.
Insecticides are specific inhibitors of

59.
Ammonia anhydrous contains

60.
Who is the father of Mycology