Question detail
Which option gives the correct cause-and-effect relationship for Reproduction, DNA and the genome: students must define a gene as a small section of DNA on a chromosome.
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 define a gene as a small section of DNA on a chromosome.
- 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 define a gene as a small section of DNA on a chromosome.
- 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 define a gene as a small section of DNA on a chromosome.. 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 define a gene as a small section of DNA on a chromosome.. 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 define a gene as a small section of DNA on a chromosome. is correct because DNA is the molecule; a gene is a functional section of that molecule. The learning objective says students must define a gene as a small section of DNA on a chromosome, 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
Misunderstanding the Definition of a Gene
Students often confuse the definition of a gene with that of a chromosome, thinking they are the same.
Emphasize that a gene is a specific segment of DNA located on a chromosome, and clarify the distinction between the two terms.
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