Question detail
Which option gives the correct cause-and-effect relationship for Reproduction, Genetic inheritance: students must construct (HT only) a genetic cross using a Punnett square and use probability to make predictions.
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 Genetic inheritance because students must construct (HT only) a genetic cross using a Punnett square and use probability to make predictions.
- B. Reversed cause: Treating DNA as if it always means one gene. This would blur DNA vs genes instead of testing Genetic inheritance.
- C. Missing link: Calling a gene a whole chromosome. This misses the objective focus on construct (HT only) a genetic cross using a Punnett square and use probability to make predictions.
- D. Different process: It moves into a neighbouring Unit 4.6 idea rather than Reproduction / Genetic inheritance.
Answer
The correct option is Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Genetic inheritance because students must construct (HT only) a genetic cross using a Punnett square and use probability to make predictions.. 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 Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Genetic inheritance because students must construct (HT only) a genetic cross using a Punnett square and use probability to make predictions.. Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Genetic inheritance because students must construct (HT only) a genetic cross using a Punnett square and use probability to make predictions. is correct because DNA is the molecule; a gene is a functional section of that molecule. The learning objective says students must construct (HT only) a genetic cross using a Punnett square and use probability to make predictions, so the answer must stay inside Genetic inheritance. 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 Punnett Squares
Students often incorrectly fill in Punnett squares by not accurately representing the alleles of the parents, leading to incorrect predictions of offspring genotypes.
To fix this, ensure that you correctly identify and write down the alleles of each parent before filling in the Punnett square. Double-check that each box represents a possible combination of alleles from the parents.
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