Final answer:
The primary function of chromosomes is to store and transmit genetic information.
Step-by-step explanation:
The primary function of the chromosome is to store and transmit genetic information. Chromosomes are structures within the nucleus that are made up of DNA and proteins. They contain the hereditary material responsible for inheritance and are passed from parent to offspring. Chromosomes also play a role in directing and regulating the construction of proteins necessary for cell growth and reproduction.