rearrangement in meiosis?

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rearrangement in meiosis?

how is rearrangement in meiosis accomplished?

2007-01-02 16:01:22 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Biology

2 answers

Rearrangement? Do you mean crossing over, which is the exchange of fragments of the chromosomes during Prophase 1 of meiosis? Anyway, for crossing over: the DNA molecules in nonsister chromatids break at corresponding places and then rejoin to the other's DNA.

2007-01-02 16:35:41 · answer #1 · answered by Xenia 3 · 0⤊ 0⤋

In addition to crossing over that occurs in prophase 1 as Xenia explained, you also have random arrangement of homologous pairs duiring metaphase 1, which will affect the distribution of maternal and paternal chromosomes in the daughter cells.

2007-01-03 01:14:37 · answer #2 · answered by Ms. K. 3 · 0⤊ 0⤋