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In one-point recombination the chromosomes are paired and split in the same point. The material downstream of the recombination point is afterwards exchanged between the two chromosomes.
Consider the following parent chromosomes:
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0123456789012345601234567890123456
+*-b-Qa*aabbbbaaa-Q-//b/*aabbabbab
++//b//-bbbbbbbbb-*-ab/b+bbbaabbaa |
Suppose bond 6 in gene 1 (between positions 5 and 6) was randomly chosen as the crossover point. Then, the paired chromosomes are cut at this bond, and exchange between them the material downstream of the crossover point, forming the offspring below:
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0123456789012345601234567890123456
+*-b-Q/-bbbbbbbbb-*-ab/b+bbbaabbaa
++//b/a*aabbbbaaa-Q-//b/*aabbabbab
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It is worth noticing that with this kind of recombination, most of the times, the offspring created exhibits different traits from those of the parents.
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