A section within a strand of messenger RNA containing a codon altered through mutation so that it codes for a different amino acid.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Relating to a mutation that changes a codon for one amino acid into a codon for a different amino acid. See more at point mutation.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.