Who reported the cell-free transmission of chicken leukemia?
Posted: Fri Jul 15, 2022 5:28 pm
a) Ellerman and Bang
b) Loeffler and Frosch
c) Iwanowski and Beijerinck
d) Twort and Bang
b) Loeffler and Frosch
c) Iwanowski and Beijerinck
d) Twort and Bang