Class II MHC proteins are present in the plasma membrane only ...

[folubunmi]

Class II MHC proteins are present in the plasma membrane only when
 A) a helper T cell has engulfed an antigen.
  B) an antigen-presenting cell has engulfed and is processing an antigen.
  C) a virus-infected cell secretes interferons.
  D) a cancerous cell gets attacked by NK cells.
  E) the body cells are healthy.

Question 2

The basal nuclei
 A) initiate conscious motor activity.
  B) activate spinal reflexes.
  C) provide the background patterns of movement involved in voluntary motor activities.
  D) exert direct control over lower motor neurons.
  E) act as gatekeepers, filtering out unnecessary sensorimotor activity.

[Carissamariew]

Answer to Question 1

B

Answer to Question 2

C

[folubunmi]

Thanks

[Carissamariew]

Welcome