Question

griffith worked on.......​

Answer 1

Explanation:

Griffith used two strains of pneumococcus (Streptococcus pneumoniae) bacteria which infect mice – a type III-S (smooth) which was virulent, and a type II-R (rough) strain which was nonvirulent.

Answer 2

Answer:

please give full questions.. which standard.. which chapter.plz rewrite the question