Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An enzyme that catalyzes the exchange of short pieces of DNA between two long DNA strands, particularly the exchange of homologous regions between the paired maternal and paternal chromosomes.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of several enzymes that mediate recombination of DNA fragments between maternal and paternal chromosomes in prokaryotes

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