Crossing Over in Chromosomes and Meiosis in Other Organisms Flashcards
1
Q
What is happens during Crossing Over?
A
chromosomes in each pair twist around each other and the chromatids break and the sections rejoin attaching to the chromatid on the oppositve homologous chromsome
2
Q
What is a Chiasma?
A
the point where the chromosomes break
3
Q
When does Crossing Over happen?
A
Prophase I
4
Q
What does Crossing Over lead to?
A
exchange of alleles between homologous chromosomes, recombines alleles that wouldn’t normally be and on the same chromosome and inherited together in gametes, leads to an increase in genetic variation
