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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
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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.read more >>
    +119962023-06-23 09:46:30

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