Answer:
The order from smallest to largest is nucleotide,gene,DNA,chromosome,nucleus,cell,organism
Explanation:
Nucleotide the buiding blocks of DNA are the smallest among the given options.DNA is bigger than gene but smaller than chromosome as DNA fits within a chromosome.
On the other hand chromosome is present within the nucleus.Nucleus along with cytoplasm and various cell organelles builds a cell.
Many cells are specifically arranged to form an organism.
So the order from smallest to largest is
Nucleotide
gene
DNA
chromosome
Nucleus
cell
organism
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