Final answer:
The number of copies of each gene in a replicated chromosome is twice the number in an unreplicated chromosome.
Step-by-step explanation:
The number of copies of each gene in a replicated chromosome is twice the number of copies in an unreplicated chromosome.
In eukaryotic cells, such as humans, the chromosomes are diploid, meaning they have two copies of each gene. During DNA replication, each chromosome is duplicated, resulting in two identical copies. Therefore, in the replicated chromosome, there are two times the number of copies of each gene compared to the unreplicated chromosome.