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Maintaining Chromosome Number

APBIO-KHEGNS

In order for the human diploid number of 46 to be maintained through generations, which of the following must occur?

A

Chromosomes replicate prior to meiosis but not prior to mitosis.

B

Replication occurs prior to mitosis to produce gametes and fertilization restores the diploid number.

C

Sister chromatids form in the G1 phase of the mitotic cell cycle.

D

Sister chromatids are formed prior to mitosis and meiosis.