Learning objective

Explain that after fertilisation the new cell divides by mitosis and embryo cells differentiate during development.

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At a glance

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Topic

Reproduction

Subtopic

Meiosis

AQA GCSE BiologyInheritance, variation and evolution

Study support

Understand this objective

Short explanation

Explain that after fertilisation the new cell divides by mitosis and embryo cells differentiate during development.. Within Reproduction, this learning objective sits inside Meiosis for AQA Biology 8461. Focus on using ideas such as embryo, fertilisation, mitosis accurately in your explanation. A strong response should define the core idea, describe the relevant biological process, and connect it back to the question wording instead of giving a vague definition. When revising, students should aim to explain the science clearly, include precise biological vocabulary, and show how the process or structure links to the wider topic rather than listing isolated facts.

Key concepts

fertilisationmitosis

Why it matters

This objective helps connect Meiosis to exam-style questions, flashcards, and revision notes for Reproduction.

Common mistakes

1 linked

Misunderstanding the role of mitosis after fertilisation: 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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