crossing over Flashcards
1
Q
When does crossing over happen
A
The chromosomes of a homologous pair are arranged down the middle of the cell before the first cell division in meiosis I.
2
Q
crossing over is
A
The process whereby a chromatid breaks during meiosis and rejoins to the chromatid of its homologous chromosome so that its alleles are exchanged
3
Q
What happens during crossing over
A
Sections of DNA are swapped between the chromosomes in a pair in a process called crossing over.
Crossing over produces new combinations of alleles.
