 | Hypothesis 4: T-tropic HIV-1 isolates can infect and replicate in EU cells, but M-tropic cannot. Selected Answer: False Incorrect. Actually, although the T-tropic viral strains can infect the EU cells, the M-tropic isolates JR-CSF and GT do not infect the EU cells. Click NEXT to see how T-tropic and M-tropic viruses are different, and what this tells us about HIV resistance. |  |