Which option gives the correct cause-and-effect relationship for The development of understanding of genetics and evolution, The understanding of genetics (biology only): students must describe how observations of chromosome behaviour in cell division supported inheritance ideas.

The correct option is Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches The understanding of genetics (biology only) because students must describe how observations of chromosome behaviour in cell division supported inheritance ideas.. It is the only option that keeps DNA vs genes separate and answers the approved learning objective in The understanding of genetics (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 The understanding of genetics (biology only) because students must describe how observations of chromosome behaviour in cell division supported inheritance ideas.. Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches The understanding of genetics (biology only) because students must describe how observations of chromosome behaviour in cell division supported inheritance ideas. is correct because DNA is the molecule; a gene is a functional section of that molecule. The learning objective says students must describe how observations of chromosome behaviour in cell division supported inheritance ideas, so the answer must stay inside The understanding of genetics (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..