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Edexcel IGCSE Biology 3.2 Fertilisation and Embryo Development Questions

Practise identifying the fertilising gamete, explaining cell division from zygote to embryo, and relating failed fertilisation to the number of offspring.

Syllabus
First assessment 2019
Course
Biology 4BI1

Exam points

  • Identify sperm as the male gamete and describe its role in fusing with the egg during fertilisation.
  • Explain that the zygote undergoes cell division by mitosis as it develops into an embryo.
  • Explain why the number of eggs released can exceed offspring by stating that not all eggs are fertilised.

Edexcel IGCSE Biology 3.2 Fertilisation and Embryo Development Questions question 1

[Maximum number: 1]

The diagram shows the human female reproductive system.

Figure for Question Edexcel IGCSE Biology 3.2 Fertilisation and Embryo Development Questions question 1 — Edexcel IGCSE Biology

Which label shows where fertilisation usually occurs?

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