Which option gives the correct cause-and-effect relationship for Variation and evolution, Genetic engineering: students must explain concerns about effects of GM crops on wild flowers, insects and human health.

The correct option is Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Genetic engineering because students must explain concerns about effects of GM crops on wild flowers, insects and human health.. It is the only option that keeps DNA vs genes separate and answers the approved learning objective in Genetic engineering.

The correct option is Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Genetic engineering because students must explain concerns about effects of GM crops on wild flowers, insects and human health.. Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Genetic engineering because students must explain concerns about effects of GM crops on wild flowers, insects and human health. is correct because DNA is the molecule; a gene is a functional section of that molecule. The learning objective says students must explain concerns about effects of GM crops on wild flowers, insects and human health, so the answer must stay inside Genetic engineering. 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..