Answer:
The correct answer will be options-
1. It is a layered structure located between paired homologs in prophase I of meiosis in many organisms.
2. It is important for maintaining homologous chromosome pairing and plays a role in recombination.
Explanation:
A synaptonemal complex is a complex protein structure formed between the pair of sister chromatin.
The complex is composed of synaptonemal complex proteins 1, 2 and 3 where formation begins in the zygotene and completes in pachytene stage of prophase I of meiosis I during which the complex along with chromatin forms a zipper structure.
Formation of synapsis allows the pairing of chromosome between two sister chromatids and mediate the process of recombination.
Thus, the selected options are the correct answer.