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anonymous

  • one year ago

How the variety occurs in offsprings?

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  1. Rushwr
    • one year ago
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    By mutations !

  2. anonymous
    • one year ago
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    Well it depends, there is more variation in sexual reproduction than in asexual reproduction. This is due to homologous crossover, the switching of 2 of the same alleles for 2 genes. Other wise, mutations or natural selection. Hope this helps.

  3. Rushwr
    • one year ago
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    yeah so mutations occur during segregation of chromosomes.

  4. anonymous
    • one year ago
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    Mutations don't occur during segregation of chromosomes, they occur during DNA replication!! @rushwr @twistnflip has a better answer, because most of variation is archieved through the process he described. However, you might want to add recombination to your answer (which is basically the term for what @twistnflip explained)

  5. Rushwr
    • one year ago
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    http://www.geneticseducation.nhs.uk/mededu/changes-to-dna-affect-gene-dosage-or-function/errors-during-meiosis @neils5x9 It does occur ! :)

  6. Rushwr
    • one year ago
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    @niels5x9 I hope that proves it :)

  7. anonymous
    • one year ago
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    @rushwr That is not segregation of chromosomes but DNA replication also in practise, very little of the variation is caused by mutations, most by crossing over ;)

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