Bacteria can convert atmospheric nitrogen into ammonia, Several form symbiotic associations with higher plants is given below;

               HOST PLANT                                                                          N-FIXING SYMBIONTS

A) Gunnera                                                                            i) Frankia

      B) Azolla                                                                                ii) Acetobacter

C) Leguminous                                                                     iii) Azospirillum

             D) Actinorhizal                                                                      iv) Nostoc

             E) Sugarcane                                                                         v) Anabaena

             F) Miscanthus                                                                       vi) Sinorhizobium

Which of the following combination with the host plants and n-fixing symbionts is CORRECT?

#Question id: 40477

#Applied Microbiology

Read the following statements regarding immune cells and select the correct option.

Statement I: All nucleated cells in the body can act as professional antigen-presenting cells

Statement II: B cells internalize antigens via receptor-mediated endocytosis and present them to Helper T cells.

#Question id: 40478

#Applied Microbiology

Consider the following statements about Macrophages:

1. They are phagocytic cells.

2. They express MHC Class II molecules on their surface.

3. They are classified as granulocytes like Basophils.

   Which of the statements given above are correct?

#Question id: 40479

#Applied Microbiology

 Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): Dendritic cells are critical for initiating a primary immune response.

Reason (R): They are the only antigen-presenting cells capable of stimulating naive T cells.

#Question id: 40480

#Applied Microbiology

Match the Immune Cell (List I) with its primary characteristic/function (List II).

#Question id: 40481

#Applied Microbiology

Which specific chemical element, released from CFCs in the stratosphere, acts as a catalyst to break down Ozone (O3) into Oxygen (O2)

#Question id: 40482

#Applied Microbiology

 Which international treaty was signed specifically to control the emission of Ozone Depleting Substances (ODS) like CFCs?