Before revision: In contrast, to the right in the blue box at top it shows the chromosome 3 pair during the G2 phase, after DNA synthesis but before cell division, where each chromosome will have two copies of each locus, connected at the centromere .
After revision: In contrast, at center top it also shows the chromosome 3 pair in metaphase, which is among the phases occurring, for a total of 2n and 4c after DNA synthesis but before cell division, where each chromosome will have two copies of each locus, connected at the centromere .