Put the following in order by size from largest to smallest: nucleus, gene, chromosome

Nucleus, chromosome, gene

Explanation:

The nucleus is the part of the cell where chromosomes are found. A human cell has 42 chromosomes. The chromosome have genes on them (made up of DNA strands – the strands are made of nucleotides). A gene is a sequence of nucleotides of the DNA that code for a functional protein.  

characterization of nanoparticles is a critical step in nanomaterial production as it provides information of dimension, morphology, surface charge, distribution and degree of surface functionalization.

b.