To order the terms from simplest to most complex, we should consider the structure and organization of genetic material and biological hierarchy. Here’s the correct order:
- paired bases - The simplest unit, consisting of nucleotides that form the rungs of the DNA ladder.
- DNA molecule - A double helix structure formed by paired bases, which contains genetic information.
- gene - A segment of DNA that contains the instructions for making a specific protein.
- chromosome - A larger structure that consists of coiled DNA molecules, containing many genes.
- arm - Refers to the sections of a chromosome (e.g., short arm and long arm).
- cell - The basic unit of life, which contains chromosomes and all cellular machinery.
- person - An entire organism made up of many cells, tissues, and systems.
Based on this understanding, the correct order from simplest to most complex would be:
paired bases, DNA molecule, gene, chromosome, arm, cell, person
The second option in your list representative of that sequence is:
paired bases, DNA molecule, gene, chromosome, cell, arm, person