Which option gives the correct cause-and-effect relationship for The development of understanding of genetics and evolution, Evidence for evolution: students must explain that evolution by natural selection is now widely accepted.

The correct option is Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Evidence for evolution because students must explain that evolution by natural selection is now widely accepted.. It is the only option that keeps DNA vs genes separate and answers the approved learning objective in Evidence for evolution.

The correct option is Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Evidence for evolution because students must explain that evolution by natural selection is now widely accepted.. Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Evidence for evolution because students must explain that evolution by natural selection is now widely accepted. is correct because DNA is the molecule; a gene is a functional section of that molecule. The learning objective says students must explain that evolution by natural selection is now widely accepted, so the answer must stay inside Evidence for evolution. The alternative options are wrong because they either treating dna as if it always means one gene., calling a gene a whole chromosome., or drift away from when asking about dna, test molecular structure, base sequence, nucleotides, or genetic information storage..