random fertilisation
What random fertilisation means in Biology A-Level, as defined for AQA, OCR.
Definitions of random fertilisation
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Reference: AQA
Any genetically unique male gamete can fuse with any genetically unique female gamete, creating novel allele combinations in the zygote.
Any one of the genetically different male gametes can fuse with any one of the female gametes, multiplying the variation again.
Pairs one gamete from each parent, combining alleles from two parents to produce genetically distinct offspring.
Topics that use random fertilisation
- Evolution may lead to speciation (A-level only) (AQA A-Level)
- Genetic diversity can arise as a result of mutation or during (AQA A-Level)
- Patterns of inheritance (OCR A-Level)
Related terms
- continuous variation
- crossing over
- discontinuous variation
- genetic drift
- genetic variation
- new combinations of alleles
- polyploidy
- Allele frequencies
Using random fertilisation in the exam
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