Agriculture MCQs

Page No. 108

A cross of hybrid with one of its parents is termed as____________________?


aHybridization


bBackcross


cTest cross


dBiohybrid


View Answer Backcross

The genetic constitution of an orgarusm is denoted by____________________?


aPhenotype


bGenotype


cAllele


dGenome


View Answer Genotype

The functional unit of mutation is___________________?


aRecon


bGaston


cGene


dMouton


View Answer Gene

The smallest unit of recombination in the chromosome is called___________________?


aGene


bChromosome


cCitron


dRecon


View Answer Citron

A genetic element which can exist in more than one of the two alternative forms is known as__________________?


aEpisome


bDisome


cMecrosome


dPeroxisome


View Answer Episome

Apheliotropic gene is one which___________________?


aAffects more than five character


bAffects more than ten character


cAffects only one character


dAffects more than one character



Polyploidy is most likely to result from ____________________?


aOccurrence of crossing over


bThe crossing over between non homologous chromosomes


cOccurrence of karyokinesis


dThe failure of homologous chromosomes to separate during meiosis



If a pure tall plant is crossed with a pure dwarf one, the ratio of tall pure dwarf in the F 2 generation after selling F1 plant will be___________________?


a1:1


b1:2


c2:1


d3:1


View Answer 1:1

The most recent evolved plant group is ____________________?


aConifers


bMosses


cgrasses


dGymnosperm


View Answer grasses

Sexually reproduces organism contribute to their offspring’s____________________?


aAll of their genes


b1/4 of their genes


c1/2 of their genes


dDiploid number of genes


View Answer 1/2 of their genes

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