stephanie1234576 stephanie1234576
  • 03-02-2021
  • Biology
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ALOT OF POINTS PLEASE HELP ME

How does crossing over explain sibling differences?

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xoxo198
xoxo198 xoxo198
  • 03-02-2021

Answer:

When chromatids "cross over," homologous chromosomes trade pieces of genetic material, resulting in novel combinations of alleles, though the same genes are still present. ... By meiosis II, only sister chromatids remain and homologous chromosomes have been moved to separate cells.

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