Edexcel IGCSE Biology · Spec 3.2
Fertilisation
What fertilisation is and how the male and female gametes join to form a zygote.
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Fertilisation
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Spec 3.2
What you need to know
- Identify animal and plant gametes accurately
- Describe fertilisation as the fusion of male and female gamete nuclei
- Know that fertilisation produces a single new cell called a zygote
Active recall
Quick check
Answer each question before opening the answer.
Define fertilisation.
The fusion of a male gamete nucleus with a female gamete nucleus to form a zygote.
How does the chromosome number of gametes compare with body cells?
Gametes are haploid (one set); body cells and the zygote are diploid (two sets).
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