Question detail
Which option avoids the common misconception in this objective for Reproduction, Genetic inheritance: students must explain the terms homozygous and heterozygous.
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 Genetic inheritance because students must explain the terms homozygous and heterozygous.
- 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 Genetic inheritance.
- C. Partial misconception: Treating DNA as if it always means one gene. This misses the objective focus on explain the terms homozygous and heterozygous.
- D. Terminology mix-up: It moves into a neighbouring Unit 4.6 idea rather than Reproduction / Genetic inheritance.
Answer
The correct option is Misconception avoided: A DNA base sequence is the storage format; a gene is the named instruction unit. This matches Genetic inheritance because students must explain the terms homozygous and heterozygous.. It is the only option that keeps DNA vs genes separate and answers the approved learning objective in Genetic inheritance.
Explanation
The correct option is Misconception avoided: A DNA base sequence is the storage format; a gene is the named instruction unit. This matches Genetic inheritance because students must explain the terms homozygous and heterozygous.. Misconception avoided: A DNA base sequence is the storage format; a gene is the named instruction unit. This matches Genetic inheritance because students must explain the terms homozygous and heterozygous. is correct because A DNA base sequence is the storage format; a gene is the named instruction unit. The learning objective says students must explain the terms homozygous and heterozygous, so the answer must stay inside Genetic inheritance. 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
Confusing homozygous with heterozygous
Students often think a homozygous individual has two different alleles, or that heterozygous means both alleles are the same.
Clarify that homozygous means both alleles are identical (AA or aa) and heterozygous means the two alleles are different (Aa).
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