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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
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mia23623 mia23623
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11 years ago
What is the importance of "crossing-over" during the division of meiosis?
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#1
11 years ago
So the genes vary... genetic recombination
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#2
11 years ago
Adds more genetic diversity.  Instead of each resultant gamete having half of one of the donor chromosomes, crossing-over means you get two like the original chromatids and two mixed-up ones.
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#3
11 years ago
It unlinks alleles that are found on the same chromosome.  It allows pairs of chromosomes to swap different copies of the same genes.  This increases genetic variability, allowing for even more possible combinations of traits than you'd get just by randomly separating chromosomes during meiosis.
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