Which option gives the correct cause-and-effect relationship for The development of understanding of genetics and evolution, Theory of evolution (biology only): students must explain that individuals in a species show a wide range of variation for a characteristic.

The correct option is Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Theory of evolution (biology only) because students must explain that individuals in a species show a wide range of variation for a characteristic.. It is the only option that keeps DNA vs genes separate and answers the approved learning objective in Theory of evolution (biology only).

The correct option is Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Theory of evolution (biology only) because students must explain that individuals in a species show a wide range of variation for a characteristic.. Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Theory of evolution (biology only) because students must explain that individuals in a species show a wide range of variation for a characteristic. is correct because DNA is the molecule; a gene is a functional section of that molecule. The learning objective says students must explain that individuals in a species show a wide range of variation for a characteristic, so the answer must stay inside Theory of evolution (biology only). 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..