Question

which flowchart correctly organizes the structures of heredity, from least to most complex?
codon gene dna chromosome
gene chromosome codon dna
dna codon chromosome gene
chromosome dna gene codon

Explanation:

A codon is a sequence of three - nucleotide bases in mRNA that corresponds to an amino - acid. A gene is a segment of DNA that codes for a functional product (e.g., a protein). DNA is a long polymer of nucleotides. Chromosomes are structures made of DNA and proteins. So, the order from least to most complex is codon (a small sequence within a gene), gene (a segment of DNA), DNA (the molecule), and chromosome (a large structure containing DNA and proteins).

Answer:

A. codon, gene, DNA, chromosome