Question

which are replicated during interphase? sister chromatids chromosomes centromeres nuclei

Explanation:

During interphase, the cell prepares for division. Chromosomes are replicated. Each chromosome then consists of two sister chromatids joined at the centromere. Nuclei are not replicated during interphase in the context of this question focus (nuclear division occurs later in mitosis). Centromeres are part of the chromosome structure and are not the main entity replicated as a separate unit in the way chromosomes (with their DNA content) are. The key is that chromosome replication (synthesis phase of interphase - S phase) leads to sister chromatids. But the question is about what is replicated. Chromosomes (their DNA) are replicated. Sister chromatids are the result of chromosome replication.

Answer:

chromosomes