Agriculture MCQs

Page No. 124

Split gene was first reported in___________________?


aDrosoplulla


bPea


cCluckens


dAll of the above


View Answer Cluckens

Low magnitude of genotype x environmental interaction indicates__________________?


aHigh buffering capacity


bStability


cLow buffering capacity


dAdaptability



Various crosses made using a common tester are__________________?


aTop cross


bBiparental cross


cDouble cross


dTest cross


View Answer Test cross

Biometrics for the study of quantitative genetics was provided by ___________________?


aFisher


bFalconer


cMather


dHayman


View Answer Fisher

In line x tester cross each male is crossed with____________________?


aDifferent sets of females


bFew females in a set


cSame sets of females


dAll of the above


View Answer Same sets of females

Ratio of additive variance to phenotypic variance is called___________________?


aHeritability (broad sense)


bHeritability (narrow sense)


cCoheritability


dGenetic gain



Specific combining ability is primarily a function of___________________?


aDominance variance


bAdditive x dominance epistasis


cDominance x dominance epistasis


dAll of the above


View Answer All of the above

Analysis of covanance permits estimation of_____________________?


aEnvironmental covanance


bPhenotypic covanance


cGenotypic covanance


dAll of the above


View Answer All of the above

The term homeostasis was coined by_____________________?


aLemer (1954)


bJinks (1968)


cWarner (1952)


dFreeman (1971)


View Answer Lemer (1954)

The term poly genes was coined by___________________?


aYates (1947)


bHazel (1943)


cMather (1943)


dGriffing (1956)


View Answer Mather (1943)

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