Plant Breeding one Liner For Agri Exam
Plant Breeding One liner
Quest.The science, which helps in changing the genetic make-up of plants in such a way that they give rise to the maximum economic product for human use.
Ans.Plant Breeding
Quest.Basic chromosome/Genomic number is
Ans.X
Quest.Genetic chromosome number is
Ans.n
Quest.Haploid no. of Triticum aestivum
Ans.n = 21
Quest.Heteroploid in which one or few chromosomes or missing from 2n
Ans.Aneuploid(Plant Breeding one Liner)
Quest.Monosomic hypoploid
Ans.2n -1
Quest.Double monosomic
Ans.2n-1-1
Quest.Nullisomic
Ans.2n-2
Quest.Hyperploid have one extra chromosome
Ans.Trisonic (2n+1)
Quest.Double trisomic
Ans.2n+1+1(Plant Breeding one Liner)
Quest.Tetrasomic
Ans.2n+2
Quest.Double Tetrasomic
Ans.2n+2
Quest.Polyploidy level in embryo and endosperm of seed
Ans.3n
Quest.Polyploidy level of testa and pollen mother cell of seed
Ans.2n
Quest.Polyploidy level in endosperm of Triticum aestivum
Ans.63(Plant Breeding one Liner)
Quest.Triploids are useful for
Ans.Seedless fruits
Quest.Wheat, cotton, tobacco and oat are
Ans.Allopolyploids
Quest.The term “primary centres of origin’ was proposed by
Ans.Vevilov
Quest.Vegetative embryos develops without fertilization
Ans.Apomixis
Quest.Development of fruit without fertilization
Ans.Parthenocarpy(Plant Breeding one Liner)
Quest.Embryo originates from unfertilized egg
Ans.Parthenogenesis
Quest.Progeny of a single cross fertilized heterozygous individual
Ans.Inbred
Quest.Male sterile line
Ans.A-line
Quest.Progeny of a single plant, obtained by asexual reproduction
Ans.Clone
Quest.A single gene affecting more than one character/governing multiple traits
Ans.Pleiotropy(Plant Breeding one Liner)
Quest.Repeated crossing of hybrid progeny back to one of its parents
Ans.Back Cross
Quest.F1 x homozygous recessive parent
Ans.Test Cross
Quest.Intra-specific hybridization is a crossed between
Ans.Two plant of different varieties
Quest.When pollen grains from an another falls on receptive stigma of the same flowers
Ans.Self pollination
Quest.Self pollinated species are also known as
Ans.Autogamous species(Plant Breeding one Liner)
Quest.When pollen grains from flower of one plant transferred to receptive stigmas of flowers of another plant
Ans.Cross pollination/Allogamy
Quest.Rice, Wheat, Buckwheat and Oat are
Ans.Self pollinated crops
Quest.Maize, Pearl millet, Black mustard and Sunflower are
Ans.Cross pollinated crops
Quest.Often Cross pollination crops are
Ans.Safflower, Arhar, Cotton and Sorghum
Quest.Continuous inbreeding (Selfing) leads
Ans.Homozygosity(Plant Breeding one Liner)
Quest.Single seed descent method is a method of
Ans.Method of Self pollination
Quest.Mass selection is always based on
Ans.Phenotype
Quest.The oldest selection method of crop improvement
Ans.Mass selection
Quest.Concept of pure line was given by
Ans.Johnson
Quest.A progeny of single homozygous, self pollinated crops
Ans.Pure line(Plant Breeding one Liner)
Quest.A method of breeding for wheat
Ans.Pure line selection method
Quest.Breeding refers to selection procedure in which the segregating population of self pollinated species is grown without selections
Ans.Bulk
Quest.Most commonly used method for selection from segregation generations of crosses in self pollinated crops
Ans.Pedigree method
Quest.A method which is not for handling segregating populations
Ans.Bulk method
Quest.A method for improving specific traits i.e. plant height, disease resistancy
Ans.Pedigree method(Plant Breeding one Liner)
Quest.Multiline breeding is exploited widely in the crop
Ans.Wheat
Quest.A method does not provide opportunity to practice selection for superior plant till F5 generations
Ans.Single seed descent method
Read More-
- General Agriculture One Liner For Competitive exam-54
- Agrometeorology One Liner For Competitive exam-2
- General Agriculture One Liner For Competitive exam-52
- General Agriculture One Liner For Competitive exam-33
- General Agriculture One Liner For Competitive exam
