Final answer:
The chromosome model involves replicated chromosomes that contain double-stranded DNA and proteins. The cell is diploid with five different lengths of chromosomes, each representing specific genes.
Step-by-step explanation:
Chromosomes are structures composed of DNA and proteins. In this cell, chromosomes are replicated and each chromosome contains one long molecule of double-stranded DNA and proteins. The cell is diploid, meaning it contains two sets of chromosomes. There are five different lengths of chromosomes in this cell, which are represented by bands on the chromosomes. The bands on the chromosomes correspond to specific genes.