Question

which are replicated during interphase?
sister chromatids
chromosomes
centromeres
nuclei

Explanation:

During interphase, chromosomes are replicated. Each chromosome consists of two sister chromatids joined at the centromere. Nuclei are not replicated during interphase in the context of cell division (nuclear division occurs later). Centromeres are part of the chromosome structure and are not separately replicated in the sense of being an independent entity for replication in the way chromosomes (with their DNA content) are. Sister chromatids are formed as a result of chromosome replication.

Answer:

chromosomes