Respuesta :

Crossing over during prophase I result in genetic recombination.

Genetic recombination is the mixing of some of the genetic material (DNA) from two different cells to form recombinant DNA.

Crossing over results in an exchange of genetic material between chromosomes that occurs only in prophase I of meiosis. During prophase I, homologous chromosomes (one from the mother and one from the father) pair up.

Prophase I in meiosis I division occurs several events:

  • The splitting of centrosomes into centrioles.
  • Chromatin condenses into chromosomes.
  • Centrioles move towards the opposite polar.
  • Homologous chromosomes close together to form synapses.
  • Molecules form tetrads.
  • Crossing over occurs.
  • Spindle threads are formed from the movement of the centrioles.
  • The nuclear membrane is not visible.

Learn more about prophase I at https://brainly.com/question/12828200

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