Class 11 NEET Biology Cell Cycle and Cell Division

During meiosis-I, in prophase I, firstly chromatin network condenses gradually which is visible as chromosomes under microscope.
Homologous chromosomes pair up in a process called synapsis.
Crossing over is the exchange of genetic material between non-sister chromatids of homologous chromosomes.
The paired chromosomes move apart due to dissolution of the protein laden-synaptonemal complex.
The actual point at which crossing over takes place is visualized as ' X ' shaped structure called chiasmata.