Strategies for enhancement in food production - Live Session - NEET & AIIMS 2019Contact Number: 9667591930 / 8527521718Strategies for enhancement in food production - Live Session - NEET & AIIMS 2019Contact Number: 9667591930 / 8527521718Classical plant breeding:
1. Involves crossing or hybridization of pure lines
2. Involves artificial selection of plants with desirable traits after hybridization
3. Both (a) and (b)
4. Utilizes molecular genetic tools
If we were to list the traits or characters that the breeders have tried to incorporate into crop plants, the first will be:
1. Resistance to pathogens
2. Increased tolerance to insect pests
3. Increased tolerance to salinity and drought
4. Crop yield and improved quality
Arrange the main steps of plant breeding sequentially:
I. Cross-hybridisation among the selected parents
II. Evaluation and selection of parents
III. Selection and testing of superior recombinants
IV. Testing, release, and commercialization of new cultivars V. Collection of variability
(1) II → V → I → IV → III
(2) V → II → III → I → IV
(3) V → II → I → III → IV
(4) II → I → V → III → IV
Germplasm collection is in the form of:
1. Seeds
2. Whole plant
3. Tissue
4. All of these
Agriculture contributes about _________ of India's GDP and gives employment ______ of the population:
1. 15%, 18%
2. 33%, 62%
3. 62%, 33%
4. 62%, 70%
Match the column :
Column - I Column - II
A. Bacterial (i) Puccinia graminis tritici
blight
B. Red-rot (ii) Colletotrichum falcatum
of sugarcane
C, Black (iii) Phytophthora infestans
rust of wheat
D. Late (iv) Xanchomon as oryzae
blight of potato
(1) A = (iv), B = (ii), C = (iii), D = (i)
(2) A = (i), B = (ii), C = (iv), D = (iii)
(3) A = (iii), B = (i), C = (ii), D = (iv)
(4) A = (iv), B = (ii), C = (i), D = (iii)
Select the incorrect match:
| Variety | Resistance of diseases | |
| (1) | Wheat (Himgiri) | Leaf and stripe rust, hill bunt |
| (2) | Brassica (Pusas warning) | Black rot of mustard |
| (3) | Cowpea (Pusa Komal) | Bacterial Bligh |
| (4) | Chilli (Pusa Sadabahar) | Chillimosaic virus, TMV, Leaf, curl |
Which of the bhindi variety is resistant to yellow mosaic virus (TMV)?
1. Parbhani kranti
2. Kalyan sona
3. Jaya
4. Rathna
Which of the following are varieties of wheat?
1. Reimei and Jagannath
2. Kalyan sona and Sonalika
3. Himgiri and Parbhani Karnti
4. None of the above
Identify the chemical mutagen:
1. Gamma rays
2. X-rays
3. Ethyl methane sulphonate and sodium azide
4. All of these
Match the column with respect to plants varieties developed by mutation breeding :
Column - I Column - II
A. Cotton (i) Reimi and Jagannath
B. Rice (ii) Erectiferum and Erectoids
C. Wheat (iii) Indore-2
D. Barley (iv) NP-836
(1) A = (iii), B = (i), C = (iv), D = (ii)
(2) A = (i), B = (ii), C = (iv), D = (iii)
(3) A = (iii), B = (i), C = (ii), D = (iv)
(4) A = (i), B = (ii), C = (iii), D = (iv)
Cereals are commonly deficient in __M__ and __N__ while legumes are commonly deficient in sulphur containing amino acids like __O__ and __p__
(1) M = Methionine, N = Cysteine , O = Lysine, P = Tryptophan
(2) M = Lysine, N = Methionine, O = Tryptophan, P = Cysteine
(3) M = Lysine, N = Tryptophan, O = Methionine, P = Cysteine
(4) M = Arginine, N = Aspartic acid, O = Methionine, P = Lysine
The lysing-rich maiza varieties developed in India are:
1. Protina
2. Shakti
3. Rattan
4. All of these
Atlas-66 is a variety of ______ with hig _____ content.
1. Rice, Protein
2. Wheat, fatty acid
3. Rice, fatty acid
4. Wheat, protein
Single cell protein (SCP):
1. Is derived from unicellular microorganisms only
2. Is obtained from fungi
3. Contain toxic proteins
4. Is processed to remove excess, nucleic acid, heavy metals and toxins
'Leaf curl' disease is caused by:
1. Fungi(e.g. Taphrina)
2. Viruses
3. Both (a) and (b)
4. Nematodes
The most common source of carbon in plant tissue culture is:
1. Amino acids
2. Fatty acids
3. Plant growth hormones
4. Sucrose
The method of producing thousand of plantlets through culture is called:
1. Micropropagation
2. Clonal selection
3. Hardening
4. Acclimatization
Which of the following is incorrect?
1. Virus-free plants can be produced by meristem culture
2. Somaclonal variations may be present in plants produced from callus
3. Somaclonal variations are caused due to recombination during meiosis
4. Cellular totipotency was first demonstrated by F.C. Steward
Plant medium used widely in preparation of culture medium is got from:
1. Cycas revoluta
2. Cocus nucifera
3. Pinus
4. Borassus
Inbreeding:
1. Is also called consanguineous mating
2. Results into offsprings called inbreds
3. Both (a) and (b)
4. Produces hybrid vigour
Which of the following is true for inbreeding?
1. Help in accumulation of superior genes
2. Help in elimination of desirable genes
3. It is the result of outcrossing
4. It creates heterozygosity
Match the column :
Column - I Column - II
A. Outbreeding (i) Male and female animals of two
different related species.
B. Cross Breeding (ii) breeding unrelated animals, which
may be between individuals of the
same breed or between different
breeds or different species
C. Interspecific hybridization (iii) Superior males of one breed are
mated with superior females of
another breed
D. Out-crossing (iv) Mating of animals within the same
breed, but not having common
ancestors on either side of their
pedigree upto 4-6 generations
(1) A = (iv), B = (i), C = (iii), D = (ii)
(2) A = (ii), B = (iii), C = (i), D = (iv)
(3) A = (iii), B = (ii), C = (iv), D = (i)
(4) A = (iii), B = (ii), C = (iv), D = (i)
MOET is a method of:
1. Fish cultivation
2. Birth control
3. Sheep cloning
4. Cattle hybridization
'Hissardale' is a breed of sheep developed by crossing:
1. Bikaneri ewes and Marino rams
2. Merino ewes and Bikaneri rems
3. Deccani ewes and Bikaneri rams
4. Merino ewes and Apennine rams
Mating of two varieties of cattle breed like Red Dane which have no common ancestors on either side of their pedigree for 4-6 generations is an example of:
1. Inbreeding
2. Out crossing
3. Interspecific hybridization
4. Cross-breeding