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GCSE Combined Science · key term
Describes a cell or nucleus containing a single set of chromosomes.
Used by AQA and Edexcel
Specification 4.6.1.2 · Paper 2
Revise: MeiosisEach gamete contains just one set of chromosomes, so it is haploid. In humans, an ordinary body cell has 46 chromosomes, whereas a sperm or egg cell has 23.
Paper 1, Paper 2
Having one set of chromosomes: half the number present in a diploid cell.
Revise: Reproduction and DNAGametes therefore need just one set: they must be haploid.
When explaining meiosis, include all three outcomes: four daughter cells, half the original chromosome number and genetically different haploid gametes.
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