Question detail
Which option correctly contrasts the named ideas for Reproduction, Meiosis: students must explain that after fertilisation the new cell divides by mitosis and embryo cells differentiate during development.
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 contrast: Mitosis produces identical cells; meiosis produces genetically different gametes. This matches Meiosis because students must explain that after fertilisation the new cell divides by mitosis and embryo cells differentiate during development.
- B. Reversed contrast: Claiming mitosis produces gametes. This would blur Mitosis vs meiosis instead of testing Meiosis.
- C. Over-broad contrast: Forgetting chromosome number is maintained in mitosis but halved in meiosis. This misses the objective focus on explain that after fertilisation the new cell divides by mitosis and embryo cells differentiate during development.
- D. Unrelated contrast: It moves into a neighbouring Unit 4.6 idea rather than Reproduction / Meiosis.
Answer
The correct option is Correct contrast: Mitosis produces identical cells; meiosis produces genetically different gametes. This matches Meiosis because students must explain that after fertilisation the new cell divides by mitosis and embryo cells differentiate during development.. It is the only option that keeps Mitosis vs meiosis separate and answers the approved learning objective in Meiosis.
Explanation
The correct option is Correct contrast: Mitosis produces identical cells; meiosis produces genetically different gametes. This matches Meiosis because students must explain that after fertilisation the new cell divides by mitosis and embryo cells differentiate during development.. Correct contrast: Mitosis produces identical cells; meiosis produces genetically different gametes. This matches Meiosis because students must explain that after fertilisation the new cell divides by mitosis and embryo cells differentiate during development. is correct because Mitosis produces identical cells; meiosis produces genetically different gametes. The learning objective says students must explain that after fertilisation the new cell divides by mitosis and embryo cells differentiate during development, so the answer must stay inside Meiosis. 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..
Common mistake
Misunderstanding the role of mitosis after fertilisation
Students often think that fertilisation itself is a mitotic division, or that the zygote immediately undergoes mitosis to produce a single cell, rather than recognising that fertilisation restores the diploid chromosome number and the resulting zygote then divides by mitosis to form the embryo.
Explain that fertilisation is the fusion of two haploid gametes to create a diploid zygote. The zygote then undergoes a series of mitotic divisions (cleavage) to increase cell number while maintaining the chromosome number, and these cells subsequently differentiate into the various tissues of the developing embryo.
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