Also found in: Medical.


 (kī-mîr′ə-plăst′, kĭ-)
A synthetic molecule that contains DNA and RNA and is temporarily incorporated into the genome of an organism in order to mediate the repair of mutations in DNA base pairs.

chi·me′ra·plas′ty n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
The chimeraplast, a combination of selected DNA and RNA--the chemical that translates the DNA's genetic code into a protein which the body can use--acts like a chemical instruction to the cell itself to alter the gene in the desired way.
"Once we know the sequence of the gene, then we build the chimeraplast so it binds to the exact location where we want to make a change," Messerschmidt said.
recently merged with the French company ValiGene to form ValiGen.] Whereas gene therapy mainly uses genetically engineered viruses to deliver a replacement gene, chimeraplasty relies on short, synthetically produced sequences of DNA/RNA hybrids (chimeraplasts) to interact with the faulty genetic material and to stimulate the cell's genetic repair mechanism to correct the defects.