Determine the recombination frequency of genes, Biology

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Why does the recombination frequency of genes vary with the distance between them in the chromosome?

The farther the distance among the loci of two genes in a chromosome the higher the recombination frequency among these genes. This is true because once alleles are nearer in the chromosome it is more probable that they are kept united when chromosomal extremities are exchanged by crossing over. On the other hand, if they are farther apart it will be easier for them to divides by crossing over.

 


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