Biology for IGCSE & O level - Inheritance (Section 4 - No. 28)

What is the purpose of the synapsis during prophase I of meiosis?

To replicate the DNA.

To create the spindle fibers.

To allow homologous chromosomes to pair up.

To separate the sister chromatids.

Synapsis, the pairing of homologous chromosomes, allows for genetic recombination via crossing over.