Question

which flow chart 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 short sequence of 3 DNA/RNA nucleotides, the smallest unit here. Genes are made up of multiple codons and are segments of DNA. DNA is a long molecule that contains many genes, and chromosomes are structures that consist of tightly coiled DNA molecules along with proteins, making them the most complex.

Answer:

A. codon ® gene ® DNA ® chromosome