Answer:
a. once, during interphase I
Step-by-step explanation:
During the process of meiosis, chromosomes replicate once, during interphase I.
During meiosis there are two cell divisions but only one replication. The two divisions are called meiosis 1 and meiosis 2. At the interphase I the chromosomes double. The genetic material is duplicated at the interface Before entering meiosis I