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What are the four sources of variation?
减数
来源 生物体
Questioner:Julian Lawrence 2023-06-17 09:46:30
The most authoritative answer in 2024
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Charlotte Thomas——Studied at the University of Johannesburg, Lives in Johannesburg, South Africa.
Genetic variation is caused by:mutation.random mating between organisms.random fertilization.crossing over (or recombination) between chromatids of homologous chromosomes during meiosis.
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