Arthropod Immunity

Question 1

How do arthropods respond to viral challenge?

Answer 1

RNase 3 (dicer) cleaves RNA into smaller pieces. RISC recognises these small pieces and cleaves the complementary strands of them.

Question 2

What cells in arthropods are capable of phagocytosis?

Answer 2

Their haemocytes

Question 3

How do the haemocytes recodnise pathoges?

Answer 3

With thioester containing proteins, which are similar to complement proteins.

Question 4

Is their evidence for an adaptive immune response in arthropods?

Answer 4

Yes - DSCAM can act as an opsonin and a receptor for pathogens.

inherited immunity

Immunity to some pathogens throught fly lifetime.