The microbial source of vitamin B₁₂ is

Give microbial source of the following products in industrial production:

Pectinase

Match the following bacteria of List-I with their commercial products of List-II:

Select the code for the correct answer from the options given below.

Give microbial source of the following products in industrial production:

Chloromycetin

Give microbial source of the following products in industrial production:

Vitamin B12

Assertion $\left(\mathrm{A}\right):$ The foolish seedling disease in rice seedlings is caused by a fungal pathogen, Gibberella fuzikuroi.

Reason $\left(\mathrm{R}\right):$ E. Kurosawa reported the appearance of symptoms of the disease in uninfected rice seedlings when they were treated with sterile filtrates of the fungus and the active principle was identified as gibberellic acid.

The correct answer is:

Match the following columns and select the correct option.

Match the following

Match List$-\mathrm{I}$ with List$-\mathrm{II}$.