Question detail
Which option gives the correct cause-and-effect relationship for Reproduction, Advantages and disadvantages of sexual and asexual reproduction (biology only): students must describe how malarial parasites reproduce asexually in the human host and sexually in the mosquito.
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: Mitosis maintains chromosome number; meiosis halves chromosome number. This matches Advantages and disadvantages of sexual and asexual reproduction (biology only) because students must describe how malarial parasites reproduce asexually in the human host and sexually in the mosquito.
- B. Reversed cause: Claiming meiosis is used for body growth. This would blur Mitosis vs meiosis instead of testing Advantages and disadvantages of sexual and asexual reproduction (biology only).
- C. Missing link: Claiming mitosis produces gametes. This misses the objective focus on describe how malarial parasites reproduce asexually in the human host and sexually in the mosquito.
- D. Different process: It moves into a neighbouring Unit 4.6 idea rather than Reproduction / Advantages and disadvantages of sexual and asexual reproduction (biology only).
Answer
The correct option is Correct cause and effect: Mitosis maintains chromosome number; meiosis halves chromosome number. This matches Advantages and disadvantages of sexual and asexual reproduction (biology only) because students must describe how malarial parasites reproduce asexually in the human host and sexually in the mosquito.. It is the only option that keeps Mitosis vs meiosis separate and answers the approved learning objective in Advantages and disadvantages of sexual and asexual reproduction (biology only).
Explanation
The correct option is Correct cause and effect: Mitosis maintains chromosome number; meiosis halves chromosome number. This matches Advantages and disadvantages of sexual and asexual reproduction (biology only) because students must describe how malarial parasites reproduce asexually in the human host and sexually in the mosquito.. Correct cause and effect: Mitosis maintains chromosome number; meiosis halves chromosome number. This matches Advantages and disadvantages of sexual and asexual reproduction (biology only) because students must describe how malarial parasites reproduce asexually in the human host and sexually in the mosquito. is correct because Mitosis maintains chromosome number; meiosis halves chromosome number. The learning objective says students must describe how malarial parasites reproduce asexually in the human host and sexually in the mosquito, so the answer must stay inside Advantages and disadvantages of sexual and asexual reproduction (biology only). The alternative options are wrong because they either claiming meiosis is used for body growth., claiming mitosis produces gametes., or drift away from mitosis questions must focus on identical cells, growth, repair, asexual reproduction, or maintained chromosome number..
Common mistake
Misidentifying the parasite stage
Students often think the malaria parasite reproduces asexually in the mosquito and sexually in the human host, reversing the actual life‑cycle stages.
Explain that in the human host the parasite undergoes asexual replication (schizogony) to increase numbers, while in the mosquito it undergoes sexual reproduction (gametocytes fuse to form zygotes) before producing sporozoites that infect humans.
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