Question detail
Which option best identifies the exact concept boundary for Reproduction, Inherited disorders: students must explain that inherited disorders are caused by the inheritance of particular alleles.
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. Definition boundary: DNA can contain many genes; a gene has a specific coding role. This matches Inherited disorders because students must explain that inherited disorders are caused by the inheritance of particular alleles.
- B. Scale confusion: Calling a gene a whole chromosome. This would blur DNA vs genes instead of testing Inherited disorders.
- C. Process confusion: Explaining protein coding without naming the gene as the relevant section of DNA. This misses the objective focus on explain that inherited disorders are caused by the inheritance of particular alleles.
- D. Evidence confusion: It moves into a neighbouring Unit 4.6 idea rather than Reproduction / Inherited disorders.
Answer
The correct option is Definition boundary: DNA can contain many genes; a gene has a specific coding role. This matches Inherited disorders because students must explain that inherited disorders are caused by the inheritance of particular alleles.. It is the only option that keeps DNA vs genes separate and answers the approved learning objective in Inherited disorders.
Explanation
The correct option is Definition boundary: DNA can contain many genes; a gene has a specific coding role. This matches Inherited disorders because students must explain that inherited disorders are caused by the inheritance of particular alleles.. Definition boundary: DNA can contain many genes; a gene has a specific coding role. This matches Inherited disorders because students must explain that inherited disorders are caused by the inheritance of particular alleles. is correct because DNA can contain many genes; a gene has a specific coding role. The learning objective says students must explain that inherited disorders are caused by the inheritance of particular alleles, so the answer must stay inside Inherited disorders. The alternative options are wrong because they either calling a gene a whole chromosome., explaining protein coding without naming the gene as the relevant section of dna., or drift away from when asking about genes, test a section of dna, protein coding, alleles, or inherited characteristics..
Common mistake
Allele‑Disease Link Misconception
Students often think any allele, whether dominant or recessive, automatically causes a disorder, ignoring that many alleles are normal variations and only specific pathogenic alleles lead to disease.
Clarify that inherited disorders arise from particular pathogenic alleles that disrupt normal function; explain that most alleles are benign and that a disorder occurs only when the allele’s effect is harmful to the organism.
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