The term polygenes was first used by:
(a) R.A. Fisher
(b) Sewall Wright
(c) K. Mather
(d) D.S. Falconer
Genetic variance was first divided into additive, dominance and epistatic components by:
(a) R.A. Fisher
(b) K. Mather
(c) Sewall Wright
(d) Hayman
Partitioning of genetic variance into additive and non-additive components was suggested by:
(a) R.A. Fisher
(b) Mather & Jinks
(c)Sewall Wright
(d) D.S. Falconer
Partitioning of phenotypic variance into heritable fixable, heritable non-fixable and non-heritable non-fixable was suggested by:
(a) R.A. Fisher
(b) K Mather
(c) Kempthorne
Additive genes exhibit:
(a) Complete dominance
(b)Lack of dominance
Additive genetic variance is:
(a) heritable non-fixable
(b) non-heritable non-fixable
(c)heritable fixable
(d) None of the above
Additive genetic variance is related to:
(a) Homozygosity
(b) Transgressive segregation
(c) Narrow sense heritability
(d)All of the above
Selection is effective for those traits which are governed by:
(a)Additive genes
(b) Epistatic genes
(c) Dominant genes
(d) All of the above
Dominance variance results due to:
(b) Interallelic interaction
(b) Intrallelic interaction
(c) Cytoplasmic effects
(d) All of the above
Dominance variance has relationship with:
(a) heterozygosity
(b) Heterosis
(c) Specific combining ability
(d) All of the above

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