Process by which non-sister chromatids exchange alleles
When does crossing over take place and why
Prophase 1 because homologous chromosomes are close together
Crossing over
homologous chromosomes pair up and are in very close proximity to each other
Homologous chromosomes, align and sections crossover and swap between the chromosomes
The crossing points are called chiasmata
This results in non-identical / different combinations of alleles
Independent assortment
production of different arrangements of alleles in daughter cells, Due to random alignment of homologous pairs along the equator of the spindle, During meiosis I
homologous chromosomes are then separated and pulled apart to different poles
The combination of alleles in each daughter so depend on how the pairs of homologous chromosomes were lined up
Does crossing over/ independent assortment happen in meiosis or mitosis
