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In prophase 1 of meiosis, crossing over results in

User Kiruse
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In prophase 1 of meiosis, crossing over results in:

1) Chromosomes are visible as a bivalent ( tetrad) tightly grouping of two chromosomes, each consisting of two sister chromatids

2) The nuclear envelope disappear.

3) Two chromosomes are grouped together very tightly.

4) chiasmata formation take place.

User Matt Harrison
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