Agriculture MCQs

Page No. 108

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


aHybridization

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bBackcross

✓


cTest cross

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dBiohybrid

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View Answer Backcross

The genetic constitution of an orgarusm is denoted by____________________?


aPhenotype

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bGenotype

✓


cAllele

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dGenome

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View Answer Genotype

The functional unit of mutation is___________________?


aRecon

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bGaston

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cGene

✓


dMouton

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View Answer Gene

The smallest unit of recombination in the chromosome is called___________________?


aGene

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bChromosome

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cCitron

✓


dRecon

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View Answer Citron

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


aEpisome

✓


bDisome

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cMecrosome

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dPeroxisome

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View Answer Episome

Apheliotropic gene is one which___________________?


aAffects more than five character

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bAffects more than ten character

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cAffects only one character

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dAffects more than one character

✓



Polyploidy is most likely to result from ____________________?


aOccurrence of crossing over

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bThe crossing over between non homologous chromosomes

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cOccurrence of karyokinesis

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dThe failure of homologous chromosomes to separate during meiosis

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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

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c2:1

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d3:1

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View Answer 1:1

The most recent evolved plant group is ____________________?


aConifers

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bMosses

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cgrasses

✓


dGymnosperm

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View Answer grasses

Sexually reproduces organism contribute to their offspring’s____________________?


aAll of their genes

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b1/4 of their genes

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c1/2 of their genes

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dDiploid number of genes

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View Answer 1/2 of their genes

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