Plant Breeding & Genetics (18)

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Agriculture Question Bank ICAR-JRF, SRF, ARS/NET, SAU, PhD, BANK-AFO,BHU, ADO,IFFCO, NFL,AAO,Agriculture supervisor, National seed Corporation and Others Competitive Exam

Agriculture Question Bank Agri Economics One Liner Questions (4)

Agriculture Question Bank

Subject:- Agriculture Economics
Special 30 One Liner Questions
 
Questions Answers
The places with varied climate conditions which leads to different variations among the crop species are called as?  Centers of Diversity
2:1:1 ratio of test cross progeny is observed in?  Dominant Epistasis
Ideotype concept was developed by?  Donald (1968)
Selection in one direction for one generation and in opposite direction in another generation is?  Cyclic selection
Marker protein for mitochondria is?  Cytochrome-C
___are a class of plant hormones that promote cell division in plant roots and Shoots?  Cytokinin
The selection that leads to speciation is?  Disruptive selection
Genes subject to dosage compensation are concerned with?  Embryo development
Results from the triple fusion (3n)? Endosperm
In a seed the food storage tissue is known as?  Endosperm/Cotyledon/ Perisperm
Use of synthetics in maize was suggested by for the 1st time.?  Hayes & Garber
Autoradiograph of replication in E. coli was shown by?  J Cairns
Who developed the concept of vertical and horizontal resistance?  J E Vender Plank
Operon model of gene regulation was discovered by?  Jacob and Monad 1961
Plant tissue culture techniques are performed in?  Laminar Air Flow Chamber

Agriculture Question Bank

Questions Answers
Trait not observed in wild relative but observed in segregates’ from crosses of crop species with wild relative is?  Latent trait
The law which explains that characters found in one species also occur in other related species is?  Law of Homologous series of Variation
The accepted theory of Mendal was?  Law of Segregation
Plastids was introduced by?  Lederberg
The extra chromosome in a primary trisomic is an?  Normal chromosome
The term “Heterosis” given by? Shull in 1914 
The main source of male sterility in Bajara? Tift-23 A
The main source of male sterility in sorghum? Tift-60
“Meristem culture’ is a method of_?  Tissue culture
Ability of a host to avoid or minimize loss in productivity instead of its infection by a pathogen is?  Tolerance
The first genetically modified food product was a?  Tomato( which was transformed to delay its ripening)
Source of male sterile cytoplasm in rice is?  Wild Abortive
The cross between inbred line and open pollinated variety was done in?  Top cross
The regeneration capacity or ability of a plant cell to develop into whole plant is known as?  Totipotency
Intra-specific hybridization is a crossed between? Two plant of different varieties
Example for a non-ionizing physical mutagen is?  U.V rays.

 

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