[Campbell Biology P.311] What is the function of the synaptonemal complex during Prophase I? | Practice Question

What is the function of the synaptonemal complex during Prophase I?

  • A: To separate sister chromatids.
  • B: To hold one homolog tightly to the other, facilitating synapsis and crossing over.
  • C: To cause the chromosomes to condense and become visible.
  • D: To move the homologous pair to the metaphase plate.

Explanation

The text and Figure 13.9 step 2 describe the synaptonemal complex as a 'zipper-like structure' that 'holds one homolog tightly to the other'. Step 3 clarifies that during this association synapsis , the DNA breaks are repaired, leading to crossing over.