Question detail
Which option avoids the common misconception in this objective for Reproduction, DNA and the genome: students must describe DNA as a polymer made of two strands forming a double helix.
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. Misconception avoided: A DNA base sequence is the storage format; a gene is the named instruction unit. This matches DNA and the genome because students must describe DNA as a polymer made of two strands forming a double helix.
- B. Common misconception: Explaining protein coding without naming the gene as the relevant section of DNA. This would blur DNA vs genes instead of testing DNA and the genome.
- C. Partial misconception: Treating DNA as if it always means one gene. This misses the objective focus on describe DNA as a polymer made of two strands forming a double helix.
- D. Terminology mix-up: It moves into a neighbouring Unit 4.6 idea rather than Reproduction / DNA and the genome.
Answer
The correct option is Misconception avoided: A DNA base sequence is the storage format; a gene is the named instruction unit. This matches DNA and the genome because students must describe DNA as a polymer made of two strands forming a double helix.. 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 Misconception avoided: A DNA base sequence is the storage format; a gene is the named instruction unit. This matches DNA and the genome because students must describe DNA as a polymer made of two strands forming a double helix.. Misconception avoided: A DNA base sequence is the storage format; a gene is the named instruction unit. This matches DNA and the genome because students must describe DNA as a polymer made of two strands forming a double helix. is correct because A DNA base sequence is the storage format; a gene is the named instruction unit. The learning objective says students must describe DNA as a polymer made of two strands forming a double helix, so the answer must stay inside DNA and the genome. The alternative options are wrong because they either explaining protein coding without naming the gene as the relevant section of dna., treating dna as if it always means one gene., or drift away from do not use dna, gene, and chromosome as interchangeable answers..
Common mistake
Misunderstanding DNA Structure
Students often describe DNA as a single strand instead of recognizing it as a double helix.
Emphasize that DNA consists of two strands that twist around each other, forming a double helix.
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