1) Proposal of laws of inheritance by Mendel
2) Discovery of mutations by Hugo delivries
3) Development of Mutation breeding by Muller & Stadler
4) Rediscovery of Mendel laws of heredity in 1900
2) During hybridization bagging is done 1) Before emasculation & after emasculation
2) Before emasculation & after artificial cross pollination
3) After emasculation & before artificial cross pollination
4) After emasculation, until and after artificial cross pollination
3) Crop improvement is possible through
1)Techniques like selection, introduction & hybridization
2) Selection
3) Scientific improvement of cultivated plants
4) Introduction
4) In a virus infected Banana crop, the healthy progeny can be obtained through
1) suckers
2) Rhizomes
3) Embryo culture
4) shoot tip culture
5) Tissue culture is
1) Growth of specific plant structures on artificial medium
2) Growth & multiplication of cells on artificial medium
3) Cryogenic maintenance of tissues
4) Maintenance , growth and differentiation of cells, tissues & organs on artificial medium
6) Which one of the following is not a fungal disease
1) Rust of wheat
2) Late blight of potato
3) Black rot of crucifers
4) Red rot of sugarcane
1) Thick stem, long internodes, high sugar content & disease resistant
2) Thick stem, high sugar content and profuse flowering
3) Thick stem, short internodes , high sugar content, disease resistant
4) Thick stem, low sugar content, disease resistant
8) In the plant breeding the first trait (or) character that the breeders would list to incorporate into crop plants is
1) Increased tolearance to environmental stresses
2) Resistance to pathogens
3) To increase crop yield and improved quality
4) Increased tolerance to insect pests
9) New variety of Abelmoschus esculentus called parbhani Kranti shows resistance to
1) Powdery mildew
2) Yellow mosaic virus
3) Blue tongue virus
4) White rust
10) Single cell protein refers to
1) a specific protein extracted from pure culture of single type of cells
2) Source of mixed proteins extracted from pure (or) mixed culture of organisms (or) cells
3) Proteins extracted from a single cell
4) A specific protein extracted from a single cell
11) A totipotent cell means
1) An undifferentiated cell capable of developing into a system or entire plant
2) An undifferentiated cell capable of developing into an organ
3) An undifferentiated cell capable of developing into complete embryo
4) Cell which lacks the capability to differentiate into an organ or system
12) Tissue culture technique can produce indefinite number of new plants from a small parental tissue.The economic importance of the techniques is in raising
1) Variants through picking up somaclonal variations
2) Genetically uniform population of an elite species
3) Homozygous diploid plants
4) Development of new species
13) Correct chronological order during callus formation is
1) Explant Cell division Callus Addition of Cytokinin Cells acquire meristematic property
2) Callus Explant Cell division Addition of Cytokinin Cells acquire meristematic property
3)Callus Cell division Explant Addition of Cytokinin Cells acquire meristematic property
4) Explant Callus cell division Addition of Cytokinin Cells acquire meristematic property
14) Arrange the following steps in a correct sequence in breeding a new genetic variety of a crop
I) Evaluation & selection of parents
II) Cross hybridization among the seleced parents
III) Collection of variability
IV) Testing, release & commercialization of new cultivars
V) Selection & testing of superior recombinants
1) III, I, II, V, IV
2) I, II, III, IV, V
3) IV, I, III, II, V
4) II, III, IV,V,I
15) Identify the correct statements:
I) Genetic variability is the root of any breeding programme
II) Pre existing genetic variability is not available from wild relatives of the crop
III) Pre-requisite for effective exploitation of natural genes is available by collection and preservation of different wild varieties, species
IV) The entire collection having all the diverse alleles for all genes in a given crop is called germplasm collection
1) I & IV ONLY
2) I,III,IV ONLY
3) III & IV ONLY
4) I,II,III, IV
16) Select the wrong statement :
1) Pectinase & cellulose dissolve the cell wall
2) Regeneration of the cell wall in so matic hybridization is induced by PEG
3) Shoot regeneration in callus is promoted by cytokinin
4) Root regeneration in callus is promoted by using auxins
1) 1 &3
2) 2 only
3) 3 & 4
4) 4 only
17) Match the following:
List I List II
A) Rapeseed I) Pusa sawani
B) Flat bean II) Pusa sem-2
C) Okra III) Pusa Gaurav
The correct match is :
1) I II III
2) III II I
3) III I II
4) II I III
18) Match the following:
List I List II
(Disease) (Causal organism )
I) Brown rust of Wheat a) Bacteria
II) Black rot of crucifers b) Fungi
III) Turnip mosaic c) Virus
IV) Late blight of potato d) Fungi
e) Virus
The correct match is:
1) e b d a
2) c d a b
3) b a c d
4) a b c d
19) Match the following:
List I List II
(Crop) (Variety)
A) Wheat I) Pusa Shubhra
B) Brassica II) Pusa Sadabahar
C) Cauliflower III) Pusa Komal
D) Chilli Iv) Himgiri
V) Pusa swarnim
The correct match is :
1) IV V I II
2) III I IV V
3) I II III IV
4) V III II I
20) Match the following:
List I List II
A) Spirulina I) Bacteria
B) Methylophilus II) Green algae
C) Mushrooms III) Fungi
IV) Blue green algae
The correct match is :
1) IV II I
2) III I IV
3) III II IV
4) IV I III
0 Comments
కామెంట్ను పోస్ట్ చేయండి