Agriculture MCQs

Page No. 124

Split gene was first reported in___________________?


aDrosoplulla

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bPea

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cCluckens

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dAll of the above

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View Answer Cluckens

Low magnitude of genotype x environmental interaction indicates__________________?


aHigh buffering capacity

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bStability

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cLow buffering capacity

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dAdaptability

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Various crosses made using a common tester are__________________?


aTop cross

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bBiparental cross

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cDouble cross

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dTest cross

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View Answer Test cross

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


aFisher

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bFalconer

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cMather

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dHayman

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View Answer Fisher

In line x tester cross each male is crossed with____________________?


aDifferent sets of females

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bFew females in a set

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cSame sets of females

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dAll of the above

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View Answer Same sets of females

Ratio of additive variance to phenotypic variance is called___________________?


aHeritability (broad sense)

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bHeritability (narrow sense)

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cCoheritability

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dGenetic gain

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Specific combining ability is primarily a function of___________________?


aDominance variance

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bAdditive x dominance epistasis

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cDominance x dominance epistasis

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dAll of the above

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View Answer All of the above

Analysis of covanance permits estimation of_____________________?


aEnvironmental covanance

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bPhenotypic covanance

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cGenotypic covanance

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dAll of the above

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View Answer All of the above

The term homeostasis was coined by_____________________?


aLemer (1954)

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bJinks (1968)

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cWarner (1952)

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dFreeman (1971)

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View Answer Lemer (1954)

The term poly genes was coined by___________________?


aYates (1947)

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bHazel (1943)

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cMather (1943)

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dGriffing (1956)

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View Answer Mather (1943)

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