Which option best identifies the exact concept boundary for Variation and evolution, Variation: students must explain how a rare mutation producing a suitable new phenotype can lead to a relatively rapid change in a species.

The correct option is Definition boundary: Mitosis produces identical cells; meiosis produces genetically different gametes. This matches Variation because students must explain how a rare mutation producing a suitable new phenotype can lead to a relatively rapid change in a species.. It is the only option that keeps Mitosis vs meiosis separate and answers the approved learning objective in Variation.

The correct option is Definition boundary: Mitosis produces identical cells; meiosis produces genetically different gametes. This matches Variation because students must explain how a rare mutation producing a suitable new phenotype can lead to a relatively rapid change in a species.. Definition boundary: Mitosis produces identical cells; meiosis produces genetically different gametes. This matches Variation because students must explain how a rare mutation producing a suitable new phenotype can lead to a relatively rapid change in a species. is correct because Mitosis produces identical cells; meiosis produces genetically different gametes. The learning objective says students must explain how a rare mutation producing a suitable new phenotype can lead to a relatively rapid change in a species, so the answer must stay inside Variation. The alternative options are wrong because they either claiming mitosis produces gametes., forgetting chromosome number is maintained in mitosis but halved in meiosis., or drift away from meiosis questions must focus on gametes, halved chromosome number, sexual reproduction, or variation..