Gaby2426
Gaby2426 Gaby2426
  • 12-03-2021
  • Biology
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Why do homologous chromosomes crossover during pro prophase l?

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kyleigh8268
kyleigh8268 kyleigh8268
  • 12-03-2021
Crossover occurs when two chromosomes, normally two homologous instances of the same chromosome, break and then reconnect but to the different end piece. If they break at the same place or locus in the sequence of base pairs, the result is an exchange of genes, called genetic recombination.
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