AQA GCSE Combined Science Trilogy · 8464
Specification 4.6.1.2 · Paper 2
Revise: MeiosisEach contributes one chromosome set, so the resulting cell has two sets again. This new diploid cell is called a zygote.
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GCSE Combined Science · key term
The single fertilised cell formed when male and female gametes join.
Used by AQA and Edexcel
Specification 4.6.1.2 · Paper 2
Revise: MeiosisEach contributes one chromosome set, so the resulting cell has two sets again. This new diploid cell is called a zygote.
Paper 1, Paper 2
The diploid cell formed when two haploid gametes fuse at fertilisation.
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In humans, a sperm or egg normally has 23 chromosomes; their fusion at fertilisation produces a zygote with 46 chromosomes.