lethal gene definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a gene that causes death during some immature stage in the development of an organism
also lethal factor
lethal gene definition by American Heritage Dictionary
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A gene whose expression results in the death of the organism, usually during embryogenesis.
lethal gene - Medical Definition
A gene whose expression results in the death of the organism.