| 释义 |
Mendelian ratio
Mendelian ratio[men′dēl·yən ′rā·shō] (genetics) The ratio of occurrence of various phenotypes in F1 and F2 generations in any cross involving characters controlled by nuclear genes. mendelian ratio
men·de·li·an ra·ti·othe ratio of progeny with particular phenotypes or genotypes expected in accordance with Mendel law among the offspring of matings specified as to genotype or phenotype.Mendel, Gregor Johann, Austrian geneticist, 1822-1884. Mendel first law - factors that affect development retain their individuality from generation to generation, do not become contaminated when mixed in a hybrid, and become sorted out from one another when the next generation of gametes is formed. Synonym(s): law of segregationMendel second law - different hereditary factors assort independently when the gametes are formed. Synonym(s): law of independent assortmentmendelian character - an inherited character under the control of a single locus.mendelian inheritance - inheritance in which stable and undecomposable characters controlled by a single genetic locus are transmitted over many generations. Synonym(s): alternative inheritancemendelian ratio - the ratio of progeny with a particular phenotype or genotype expected in accordance with Mendel law among the offspring of matings specified as to genotype or phenotype. |