Actual Interchange of complex segments between two homozygous chromosomes takes place at

1. synapsis
2. Chiasmata
3. Synaptical complex
4. Crossing over

Hello Student
Correct answer is 3. Synaptical Complex
Synapsis is pairing of chromosomes chiasmata is the cross- shaped configuration and visible at diplotene stage at which the exchange of homozygous takes place. Synaptical complex is the protein body formed between paired homozygous chromosomes.