Question

which best describes the relationship between dna, genes, and chromosomes?
dna are segments of genes; the genes form tight coils called chromosomes.
genes are segments of dna; the dna forms tight coils called chromosomes.
chromosomes are segments of dna; the dna forms tight coils called genes.
genes are segments of chromosomes; the chromosomes form tight coils called dna.

Explanation:

• DNA is a long molecule.
• Genes are specific segments of DNA that code for proteins or have regulatory functions.
• Chromosomes are structures made up of DNA (with associated proteins) that are tightly coiled.

Answer:

Genes are segments of DNA; the DNA forms tight coils called chromosomes.