Final answer:
The statement is true because prometaphase chromosomes are less compacted and therefore show smaller numbers of G bands compared to metaphase chromosomes.
Step-by-step explanation:
The statement is true.
During prometaphase, the chromosomes are not yet fully compacted and are less tightly coiled compared to metaphase chromosomes. This makes them appear less condensed and allows for the visualization of fewer G bands.
For example, in metaphase, human chromosomes appear as tightly coiled structures with clear bands. However, in prometaphase, the chromosomes are still in the process of condensing and aligning at the metaphase plate, making the G bands less pronounced.