Also found in: Thesaurus, Medical.
1. Also called law of segregation. the principle stating that during the production of gametes the two copies of each hereditary factor segregate so that offspring acquire one factor from each parent.
2. Also called law of independent assortment. the principle stating that the laws of chance govern which particular characteristics of the parental pairs will occur in each individual offspring.
3. Also called law of dominance. the principle stating that one factor in a pair of traits dominates the other in inheritance unless both factors in the pair are recessive.
[1900–05; after German. J. Mendel]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.