Question

which of the following correctly organizes these genetic terms in order from smallest to largest?
chromosome, gene, nucleotide, dna molecule
nucleotide, gene, dna molecule, chromosome
dna molecule, nucleotide, gene, chromosome
dna molecule, nucleotide, chromosome, gene

Explanation:

Nucleotides are the building - blocks of DNA. Genes are segments of DNA molecules. Chromosomes are made up of DNA molecules (along with proteins). So the correct order from smallest to largest is nucleotide, gene, DNA molecule, chromosome.

Answer:

B. nucleotide, gene, DNA molecule, chromosome