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GCSE Biology · key term
Reproduction in which gametes fuse to produce offspring with a combination of genetic material from their parents.
Used by AQA, Edexcel and OCR
Specification 4.6.1.3 · Paper 2
Reproduction in which male and female gametes fuse, mixing genetic information and producing varied offspring.
Revise: Reproduction Pros and ConsSexual reproduction joins male and female gametes. Their genetic information mixes, so the offspring are genetically different from one another. Asexual reproduction needs only one parent and no fusion of gametes.
Specification 3.2B · Paper 1
Reproduction in which gametes fuse at fertilisation to produce an offspring with genetic material from two parents.
Revise: Sexual ReproductionIn sexual reproduction, a gamete from each of two parents fuses at fertilisation. Each gamete carries genetic material, so the offspring inherits a combination from both parents. Different combinations of inherited versions of genes, called alleles, mean offspring are genetically different from one another and from their parents.
Specification B5.1f · Paper 2 (Foundation), Paper 4 (Higher)
Reproduction in which two gametes fuse, combining genetic material to produce an offspring with a new combination of genes.
Revise: Asexual and sexual reproductionIn sexual reproduction, two gametes fuse. The offspring receives a combination of genetic information and is genetically different from its parents and usually from other offspring.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Advantages and DisadvantagesIn sexual reproduction, two gametes fuse. Each contributes genetic material, so the offspring inherit a new combination from their parents. In asexual reproduction, one parent produces offspring without gametes fusing.
When explaining variation, say that sexual reproduction combines genetic material from gametes. Environmental pressure does not create the particular variation an organism needs.
When comparing rates, say that sexual reproduction is generally slower than asexual reproduction, not that it always produces fewer offspring.
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