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Explain how sexual reproduction gives ri...

Explain how sexual reproduction gives rise more visible variations than asexual reproduction. How evolution of those organisms that reproduce does this affect the sexually ?

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(1) Sexual reproduction gives rise to more visible variations than asexual reproduction because in sexual reproduction, each new generation is the combination of the DNA copies from two pre-existing individuals.
(2) Even during gamete formation new combination of genes occurs during meiosis.
From more visible variations during sexual reproduction, certain favourable variation can be selected by natural selection.
Whereas in asexual reproduction generally offsprings are exact copies of their single parent.
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