The correct order from largest to smallest is:
Chromosome, DNA, Gene
Here's the reasoning:
- Chromosome: This is the largest structure and consists of tightly packed DNA.
- DNA: This is a molecule that carries genetic information and is found within chromosomes.
- Gene: This is a specific segment of DNA that codes for a particular trait or function, making it the smallest unit in this context.
So the final order is:
Chromosome, DNA, Gene