If no chiasma forms between homologous chromosomes, what happens? The homologues stay together. The homologues tend to separate after dissolution of the synaptonemal complex. The homologues merge and adhere to one another. The homologues tend to separate before the synaptonemal complex disappears. Solution If no chiasma forms between homologous chromosomes then the homologues will tend to seperate before the synaptonemal complex disappears..