Rank the following genetic structures from smallest to large

Solution

The order is as follows:

Nucleotide<gene<double helix<nucleosome<chromatin fibre.

Nucleotides are A,T,G,C. They comprise of 1 base pair and are the coding units for gene.

A gene is a functional unit/segment of a DNA. It comprises of 100 to 100s of nucleotides.

DNA is a molecule that carries the gentic information for an organism, structure being double helix.

Nucleosomes are DNA coiled around a core of histone.

Chromatin fibre is a macromolecule comprising DNA+Protein+RNA