Agriculture MCQs

Page No. 122

Male sterility in flowering plants was first reported is__________________?


aBateman (1952)


bStout (1917)


cKoelreuter (1763)


dBraw baker (1958)


View Answer Koelreuter (1763)

Mating system in which each female gamete () with every male gamete is known as____________________?


aGenetic assortative mating


bGenetic disassortative mating


cRandom mating


dNone of the above


View Answer Random mating

Self pollination is associated with__________________?


aChasmogamy


bDikogamy


cHerkogamy


dHomogamy


View Answer Homogamy

Development of embryo from egg cell without fertilization is known as___________________?


aApogamy


bParthenogenesis


cApospory


dAutogamy


View Answer Parthenogenesis

The term mitosis was coined by__________________?


aRimpu (1890)


bNilson (1900)


cDe Vilmorin (1856)


dFlemming (1882)


View Answer Rimpu (1890)

Which generate variability_________________?


aMitosis


bMeiosis


cPeleiotropy


dNone of the above


View Answer Meiosis

Allogamy is the common form of________________________?


aInbreeding


bOut breeding


cSyn breeding


dAll of the above


View Answer Out breeding

Gradual reduction on genetic variability due to elimination of various () is called_______________________?


aCenters of diversity


bLand races


cGenetic erosion


dGenetic diversity


View Answer Genetic erosion

Primitive cultivars which are selected and cultivated by farmers for many years are___________________?


ateriary gene pool


bObsolete cultivars


cLand races


dModern cultivars


View Answer Land races

The variety of genes and genotypes found in a particular crop special are_____________________?


aGenetic diversity


bGenetic erosion


cGene sanctuaries


dField gene banks


View Answer Genetic diversity

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