Which of the following happens during genetic recombination, causing diversified B-cell receptors?

• A. The DNA molecules are separated into a single strand and will be replicated.
• B. The chromosomes lined up at the center of the dividing cells.
• C. DNA is broken and recombined to produce new allele combinations.
• D. The mRNA is spliced and rearranged into different combinations.

Answer: (C)