Question detail
Which option gives the correct cause-and-effect relationship for Reproduction, DNA and the genome: students must explain that DNA is contained in structures called chromosomes.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Reproduction
Question
- A. Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches DNA and the genome because students must explain that DNA is contained in structures called chromosomes.
- B. Reversed cause: Treating DNA as if it always means one gene. This would blur DNA vs genes instead of testing DNA and the genome.
- C. Missing link: Calling a gene a whole chromosome. This misses the objective focus on explain that DNA is contained in structures called chromosomes.
- D. Different process: It moves into a neighbouring Unit 4.6 idea rather than Reproduction / DNA and the genome.
Answer
The correct option is Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches DNA and the genome because students must explain that DNA is contained in structures called chromosomes.. It is the only option that keeps DNA vs genes separate and answers the approved learning objective in DNA and the genome.
Explanation
The correct option is Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches DNA and the genome because students must explain that DNA is contained in structures called chromosomes.. Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches DNA and the genome because students must explain that DNA is contained in structures called chromosomes. is correct because DNA is the molecule; a gene is a functional section of that molecule. The learning objective says students must explain that DNA is contained in structures called chromosomes, so the answer must stay inside DNA and the genome. 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..
Common mistake
Confusing DNA with chromosomes
Students often say DNA *is* a chromosome or that chromosomes are made of DNA, mixing up the two concepts.
Explain that DNA is the genetic material that is packaged into structures called chromosomes; chromosomes are the visible, thread‑like structures in the nucleus that contain many DNA molecules.
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