Which phase of the cell cycle would you predict would be disrupted the most by this chemical?

During the S phase the cell replicates the chromosomes by taking one chromatid and effectively doubling it (these are later ripped apart during Anaphase in Mitosis). So during the S phase of the Interphase cycle, chromosomes are replicated into two sister chromatids.

you should wear a lead protective shield when having teeth x-rays

hope i

-lavira : )