GPB Part-1 — Agri Master Mind

The phenomenon of expression of only one character or allels in heterozygous condition called
  • Dominance
  • Recessive
  • Both
  • None
Human blood group show
  • Over-dominance
  • Co- dominance
  • Complete dominance
  • Partials dominance
A single gene often influences more than one phenotypes traits called
  • Pleiotropism
  • Epistasis
  • Lethality
  • None
Ratio of recessive epistasis
  • 2:1
  • 12 :3:1
  • 9:3:1
  • None
Ratio of polymeric gene action
  • 9:6:1
  • 12 :3 :1
  • 9:3:1
  • 9:1
Linkages given by
  • T . H Morgan
  • Batson
  • Punnet
  • None
The traits which are located on sex chromosomes called
  • Sex influenced
  • Sex limited
  • Sex linked
  • None
Example of sex limited trait
  • Milk production
  • Colour blindness
  • Both
  • None
The inheritance are governed by non nuclear gene called
  • Cytoplasmic inheritance
  • Maternal inheritance
  • Extranuclear inheritance
  • All of these
Gene present in the cytoplasm called
  • Plasmogenes
  • Plasmones
  • Both
  • Nuclear gene
Maternal inheritance in maize discovered by
  • Rhoades 1933
  • Correns 1908
  • Jenkens 1924
  • Soneberg 1943
Adventitious embryony shown by
  • Mango
  • Citrus
  • Orchids
  • Al of these
Embryo sac is produced from the mega spore called
  • Apospory
  • Diplospory
  • Apomeiosis
  • None
Embryo is developed from embryo sac without pollination
  • Parthenogenesis
  • Pseudogamy
  • Apomixis
  • All of these
The progeny obtained from cross between two facultative apomicts called
  • Hybrid
  • HYV
  • Cybrid
  • Vybrid
Cleistogamy shown by
  • Tomato
  • Wheat
  • Brinjal
  • Pea
Stamen mature earlier
  • Protogyny
  • Protoandry
  • Dioecy
  • Monoecy
Male sterility is
  • Non – functional pollen grain
  • Non functional anther
  • Non functional stamen
  • None
In self incompatibility
  • Pollen grain are not functional
  • Pollen grain are functional
  • Both
  • None
Gametophytic incompatibility given by
  • Lewis
  • Hughes
  • East and Mangelsdorf
  • None
Suppression of SI through
  • Bud pollination
  • Surgical pollination
  • Salt spray
  • All of these
CMS have …
  • Used in production of vegetative growth
  • Controlled by mitochondrial DNA
  • Delected by restorer gene
  • All of these
Chemical used in MS
  • MH
  • NAA
  • FW 450
  • All of these
Qualitative characters is controlled by
  • Oligogenes
  • Polygene gene
  • Both
  • None
Quantitative characters affected by
  • Environmental factor
  • Chemical factor
  • Both
  • None
The ratio of genetics variance to the total variance is
  • Heritability
  • Pleiotropy
  • Penetrance
  • All of these
Progeny test given by
  • Vilmorin
  • T . H morgan
  • Vivilov
  • None
Progeny of single homozygous plant of self pollinated species
  • Progeny test
  • Pureline
  • Both
  • None
Self – pollination cause
  • Increase homozygosity
  • Decrease homozygosity
  • Increase heterozygosity
  • Decrease heterozygosity
Method used in segregating generations
  • Pedigree method
  • Bulk method
  • Backcross method
  • All of these
Hardy – Weinberg law provides
  • Study to panmictic population
  • Mendelian population
  • Both
  • None
Random change in gene frequency due sampling error is
  • Random drift
  • Migration
  • Selection
  • All of these
The reduction in vigour and fertility due to inbreeding as
  • Inbreeding depression
  • Heterosis
  • Hybrid vigour
  • All of these
Heterosis is given by
  • Shull 1914
  • Darwin 1876
  • Hardy
  • All of these
Which ones is not correct
  • Dominance hypothesis – Davenport
  • Overdominance hypothesis – Fisher
  • Epistasis hypothesis – shull
  • None
Hybridization is
  • Mating of two plant of dissimilar genotype
  • Mating of two plant of similar genotype
  • Mating of two plant of dissimilar phenotype
  • Mating of two plant ofsimilar phenotype
The effect of pollen on maternal tissue of the fruit
  • Cybrid
  • Vybrid
  • Metaxenia
  • None
First hybrid produce by
  • Shull
  • Thomas Fairchild
  • Darwin
  • None
Mating between two same variety is called
  • Intervarietal hybridization
  • Intravariental hybridization
  • Both
  • None
Two parents are crossed to produce F1
  • Complex crosss
  • Simple cross
  • Convergent cross
  • None
Emasculation is done by
  • Alcohol treatment
  • Cold treatment
  • Genetics treatment
  • All of these
Method commonly used in cross – pollinated crops
  • Population improvements
  • Mass selection
  • Recurrent selection
  • All of these
The cross of selected plants with open pollinated variety is
  • Top cross
  • Test cross
  • Back cross
  • All of these
Which one is incorrect are …
  • Jower – CSH
  • Bajar – HB1
  • Cotton – H4
  • Rice – jaya
Variety produce by mixing seeds of several phenotypically outstanding lines and encouraging open -pollinated to produces in all combinations among the mixed lines ……
  • Synthetic variety
  • Composite variety
  • Hybrid variety
  • None
Breeding method used for disease resistance
  • Mass selsction
  • Back cross
  • Selection
  • None
Mutation is
  • By Hugo de Vries
  • Sudden heritable change
  • Work on primrose
  • None
Non – ionizing radiation mutagens
  • Alpha rays
  • Gamma rays
  • Thermal neutrons
  • UV
Base analogues is
  • 5 – bromouracil
  • 5- chlorouracil
  • Both
  • None
Nullsomy is
  • 2n-2
  • 2n-1
  • 2n-1-1
  • 2n+1
Pairing between two or more homologous chromosomes called
  • Allosyndesis
  • Autosyndesis
  • Both
  • None
Gigas mutant is
  • First in Oenothera
  • By lutz in 1907
  • Autotetraploid
  • All of these
Seedless watermelon is
  • Triploids
  • Diploid
  • Polyploids
  • All of these
Autotriploid which ae highly fertile
  • Watermelon
  • Banana
  • Spinach
  • None
First mam made cereals by
  • Rimpau
  • Winkler
  • Goodspeed
  • none