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26 December, 07:33

Your uncle wants to create a dog small enough to fit into a purse. Of the hundreds of dogs on his farm, he breeds only the smallest 10% of them. He then breeds only the smallest 10% of their offspring, and continues to breed only the smallest 10% of each generation. Over 20 years, his group of dogs did become smaller (though not small enough to fit into a purse). Did he witness evolution?

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  1. 26 December, 07:43
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    no he did not witness evolutoin
  2. 26 December, 07:51
    0
    Yes, he witnessed a little bit of evolution.

    Explanation:

    Evolution is based upon the change in the heritable characteristic features of a species over time. This change does not happen suddenly, it happens gradually over generation after generations. The change in characteristic expression of genes are passed through from parents to their offspring during reproduction.

    He kept on breeding only the smallest one's generation after generation for long 20 years. His end result was having the smallest puppies though they are not too small to fit in the purse but still, evolution happened.
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