Question detail
Which option avoids the common misconception in this objective for Reproduction, Genetic inheritance: students must complete Punnett square diagrams and extract information from genetic crosses and family trees.
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 complete Punnett square diagrams and extract information from genetic crosses and family trees.
- 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 complete Punnett square diagrams and extract information from genetic crosses and family trees.
- 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 complete Punnett square diagrams and extract information from genetic crosses and family trees.. 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 complete Punnett square diagrams and extract information from genetic crosses and family trees.. Misconception avoided: A DNA base sequence is the storage format; a gene is the named instruction unit. This matches Genetic inheritance because students must complete Punnett square diagrams and extract information from genetic crosses and family trees. is correct because A DNA base sequence is the storage format; a gene is the named instruction unit. The learning objective says students must complete Punnett square diagrams and extract information from genetic crosses and family trees, 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
Misinterpreting Punnett Squares
Students often misplace the alleles in the Punnett square, leading to incorrect predictions of offspring genotypes.
Carefully label the alleles from each parent along the top and side of the Punnett square, ensuring they are placed correctly before filling in the squares.
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