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Crossing over in diploid organism is responsible for

1. segregation of alleles
2. dominance of genes
3. linkage between genes
4. recombination of linked alleles

Correct answer: recombination of linked alleles

Solution

Crossing over occurs between homologous chromosomes in prophase I of meiosis and swaps corresponding DNA segments. This produces new combinations of alleles, so the correct effect is recombination of linked alleles.

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