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