Question detail

Which option avoids the common misconception in this objective for Reproduction, Meiosis: students must explain how fertilisation restores the full number of chromosomes.

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Reproduction

Question

A. Misconception avoided: Chromosome number changes in meiosis; gene variants are alleles. This matches Meiosis because students must explain how fertilisation restores the full number of chromosomes.
B. Common misconception: Missing that chromosomes contain many genes. This would blur Genes vs chromosomes instead of testing Meiosis.
C. Partial misconception: Saying a chromosome codes for one protein instead of identifying a gene. This misses the objective focus on explain how fertilisation restores the full number of chromosomes.
D. Terminology mix-up: It moves into a neighbouring Unit 4.6 idea rather than Reproduction / Meiosis.

Answer

The correct option is Misconception avoided: Chromosome number changes in meiosis; gene variants are alleles. This matches Meiosis because students must explain how fertilisation restores the full number of chromosomes.. It is the only option that keeps Genes vs chromosomes separate and answers the approved learning objective in Meiosis.

Explanation

The correct option is Misconception avoided: Chromosome number changes in meiosis; gene variants are alleles. This matches Meiosis because students must explain how fertilisation restores the full number of chromosomes.. Misconception avoided: Chromosome number changes in meiosis; gene variants are alleles. This matches Meiosis because students must explain how fertilisation restores the full number of chromosomes. is correct because Chromosome number changes in meiosis; gene variants are alleles. The learning objective says students must explain how fertilisation restores the full number of chromosomes, so the answer must stay inside Meiosis. The alternative options are wrong because they either missing that chromosomes contain many genes., saying a chromosome codes for one protein instead of identifying a gene., or drift away from options should make scale explicit: section of dna versus long dna molecule..

Common mistake

Assuming fertilisation adds chromosomes

Students often think fertilisation simply adds another set of chromosomes to the zygote, as if the gametes each contribute a full set rather than halved sets.

Explain that each gamete already contains half the chromosome number; fertilisation joins one haploid set from the sperm with one from the egg to restore the diploid number, not add a full set to an existing diploid cell.

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