Combined Science GCSE
Zygote
What Zygote means in Combined Science GCSE, as defined for AQA.
Definitions of Zygote
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Reference: AQA
The cell formed by fertilisation, which is XX and female if an X sperm fertilises an egg and XY and male if a Y sperm does.
The diploid cell formed at fertilisation when two gametes fuse, restoring the full chromosome number.
The single cell formed when the male and female gamete nuclei join at fertilisation.
Formed when each sperm fuses with an egg, it then divides to form an embryo.
Topics that use Zygote
- Genetic inheritance (AQA GCSE)
- Sex determination (AQA GCSE)
- Sexual and asexual reproduction (AQA GCSE)
- The use of hormones to treat infertility (HT only) (AQA GCSE)
Related terms
Using Zygote in the exam
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