Agriculture MCQs

Page No. 117

In barley, resistance to cereal leaf beetle is associated with_________________?


aHigh aspartic acid


bWaxiness of leaves


cHigh silica content


dHigh benzol alcohol


View Answer Waxiness of leaves

Disease and insect resistance is governed by________________?


aPlasma genes


bPolygenes


cOligogenes


dAll of the above


View Answer All of the above

In rice, brown plant hopper has no preference for___________________?


aPurple stigma


bRed pericarp


cLow aspergine


dAll of the above


View Answer All of the above

Vertical resistance is also known as_________________?


aRace specific


bOligogenic


cQualitative


dAll of the above


View Answer All of the above

Maximum mutants varieties are evolved in_________________?


aRice


bWheat


cBarley


dMaize


View Answer Rice

Mutation was first discovered by________________?


adeVries (1900)


bMorgan (1910)


cStadler (1928)


dWright (1791)


View Answer Wright (1791)

A gene which exhibits higher mutation rate than others is referred as___________________?


aMutator gene


bAnti-mutator gene


cMutable gene


dHot spot


View Answer Mutable gene

Blackeselee reported the first case of monoploid in__________________?


aDatura


bRye


cBrassica


dOat


View Answer Datura

An individual lacking only one chromosome from the diploid set is referred as_________________?


aNullisomic


bMonosomic


cTrisomic


dTetrasomic


View Answer Monosomic

Haploid plants have been produced by another culture in tomato by_________________?


aGreshof and Doy (1972)


bTyagi and Prasad (1965)


cMehta and Upadhya (1960)


dSingh (1960)



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