The concentration of virus that infects or kills 50% of the host cells is referred to as the
A. LD50.
B. ID50.
C. ID100.
D. LD100.
E. LD50 AND ID50.
E
You might also like to view...
The internal body fluids of an osmoconformer can best be described as having:
A. roughly the same total solute concentration as the external environment. B. a higher solute concentration than the external environment. C. a lower solute concentration than the external environment. D. all of the same concentrations of particular ions as the external environment. E. None of the answer options is correct.
All of the following are model organisms, except
A) Saccharomyces cerevisiae. B) Drosophila melanogaster. C) Caenorhabditis elegans. D) Arabidopsis thialana. E) Homo sapiens.
Formation of urine involves filtration, reabsorption and secretion, all of which are done by the bladder.
a. true b. false
Which of the following crosses will yield four phenotypes in a ratio of 9:3:3:1?
Select one: a. RRYY × RRYY b. RRYY × rryy c. RrYy × RrYy d. RrYy × rryy e. rryy × rryy