Question detail
Which option gives the correct cause-and-effect relationship for Variation and evolution, Variation: students must state that there is usually extensive genetic variation within a population of a species.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Variation and evolution
Question
- A. Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Variation because students must state that there is usually extensive genetic variation within a population of a species.
- B. Reversed cause: Treating DNA as if it always means one gene. This would blur DNA vs genes instead of testing Variation.
- C. Missing link: Calling a gene a whole chromosome. This misses the objective focus on state that there is usually extensive genetic variation within a population of a species.
- D. Different process: It moves into a neighbouring Unit 4.6 idea rather than Variation and evolution / Variation.
Answer
The correct option is Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Variation because students must state that there is usually extensive genetic variation within a population of a species.. It is the only option that keeps DNA vs genes separate and answers the approved learning objective in Variation.
Explanation
The correct option is Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Variation because students must state that there is usually extensive genetic variation within a population of a species.. Correct cause and effect: DNA is the molecule; a gene is a functional section of that molecule. This matches Variation because students must state that there is usually extensive genetic variation within a population of a species. is correct because DNA is the molecule; a gene is a functional section of that molecule. The learning objective says students must state that there is usually extensive genetic variation within a population of a species, so the answer must stay inside Variation. 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
Variation common mistake 1
Giving a vague answer instead of directly addressing: State that there is usually extensive genetic variation within a population of a species..
Answer by clearly explaining how to state that there is usually extensive genetic variation within a population of a species..
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