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Plant Breeding & Genetics-9

Q.1
A cross between the F1 hybrid and a strain having the recessive form of the character is known as_______.

Double cross
Forward cross
Best cross
Test cross


Q.2
In a triplet code, three RNA base code for_____________.
Two amino acid
One amino acid
Four amino acid
Three amino acid


Q.3
The power house of cell refers to__________.
Plastids
Ribosomes
Nucleus
Mitochondria


Q.4
Main force behind passive absorption of water by roots, is_________.
Root pressure
Transpiration pull
Osmotic pressure
None of the above


Q.5
Which one of the following forms of soil water is commonly absorbed by plants?
Hygroscopic water
Capillary water
Gravitational water
Combined water


Q.6
Which of the following forms of soil has plenty of water but is physiologically dry?
Water logged soil
Sandy loam
Clayey loam
Loam

Q.7
Casparian strips are found in roots in_________.

Epidermal cells
Cortical cells
Pericycle
Endodermal cells


Q.8
Stomata open when guard cells become,_______.
Turgid
Plasmolysed
Flaccid
None of the above


Q.9
Plant biotechnolgy is a combination of___________.
Tissue culture and biotechniques
Biotechniques and genetic engineering
Tissue culture and genetic engineering
None


Q.10
Developments of transgenic plants with resistance to biotic and abiotic stresses by_______.
Tissue culture
Biotechnology
Haploid
Diploid


Q.11
The plant tissue or organ excised and used for in vitro culture is known______.
Explants
Transgenic plant
Haploid
None


Q.12
The explants not be surface sterilized by______.
Sodium hypochlorite
HCL
Mercuric chloride
Calcium hypochlorite


Q.13
Is an idea, a design, an invention, a manuscript, etc. which can ultimately give rise to a product / application________.
IPR
PVA
PVP&FR
PBR


Q.14
Seed colouring serves the purpose i.e._________.
Attract insects
Symbol of treatment given
Attract birds
Both A and C


Q.15
Heritability of a polygenic trait in a pure line of wheat will be_______.
Close to ‘0’
1≤
Close to 1
None of these


Q.16
Cytoplasmic male sterility in maize is governed by_______.
Mitochondrial genes
Chloroplast genes
Ribosomal genes
All of these


Q.17
Enforcement of seed act involving seed certification agency for________.
Notified varieties
Private companiy’s varieties
Breeder’s varieties
Farmer’s Varieties


Q.18
Sum total of genes in a population is________.
Genome
Germlasm
Germlasm
Genepool


Q.19
De-linting of cotton is done with._____________.
Acid
Water
Alcohol
Detergent


Q.20
Seed processing refers to__________.
Drying
Packing
Gradeing
All of above


Q.21
The golden rice is developed by__________.
Indian researchers
African researchers
Swiss researchers
Australian researchers


Q.22
Physical purity of varieties is determined by_____________.
Germination Test
Grow Out Test
Field Inspection
Laboratory Test


Q.23
Development of callus from leaf tissue is_________.
Differentiation
Regeneration
De-differentiation
None


Q.24
Seed viability testis carried out by_______.
ELISA
Tetrazolium test
Grow Out Test
Physical Purity Test


Q.25
The theory of pure line selection was proposed by____________.
Mahalanobis P
Karl Pearson
W. L. Johanssen
John Le Counter

Number of score out of 25 = Score in percentage =


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