Question
Biology Question on cell cycle and cell division
During _________stage of meiosis I, crossing over take place.
A
diplotene
B
diakinesis
C
metaphase
D
pachytene
Answer
pachytene
Explanation
Solution
Crossing over (recombination) occurs during pachytene. Recombination involves mutual exchange of the corresponding segments of non-sister chromatids of homologous chromosomes and produces variations. It takes place by breakage and reunion of chromatid segments.