Which of the following enhances or induces fusion of protoplasts?
1. Sodium chloride and potassium chloride
2. Polyethylene glycol and sodium nitrate
3. IAA and kinetin
4. IAA and gibberellins

 

Subtopic:  Plant Tissue Culture |
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In vitro clonal propagation in plants in characterized by :

1. PCR and RAPD

2. Northern blotting

3. Electrophoresis and HPLC

4. Microscopy

Subtopic:  Plant Tissue Culture |
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In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called 
1. cross-hybridisation among the selected parents.
2. evaluation and selection of parents.
3. germplasm collection
4. selection of superior recombinants.
Subtopic:  Plant Breeding & Its Steps |
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To obtain virus - free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken ?

1. Apical meristem only

2. Palisade parenchyma

3. Both apical and axillary meristems

4. Epidermis only

Subtopic:  Plant Tissue Culture |
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Which part would be most suitable for raising virus-free plants for micro propagation?

1. Bark

2. Vascular tissue

3. Meristem

4. Node

Subtopic:  Plant Tissue Culture |
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‘Jaya’ and ‘Ratna’, developed for the green revolution in India, are the varieties of:
1. rice 2. wheat
3. bajra 4. maize
Subtopic:  Impact: Green Revolution |
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A collection of plants and seeds having diverse alleles of all the genes of a crop is called

1.  germplasm

2.  gene library

3.  genome

4.  herbarium

Subtopic:  Plant Breeding & Its Steps |
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Bioethanol can be produced by using which of the following plants?

1.  Brassica

2.  Zea maize

3.  Jatropha

4.  Pongamia

Subtopic:  Plant Breeding & Its Steps |
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Mutations can be induced with

1.  IAA

2.  ethylene

3.  gamma radiations

4.  infrared radiations

Subtopic:  Breeding for Disease Resistance |
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‘Himgiri’ developed by hybridization and selection for disease resistance against rust pathogens is a variety of

1.  maize

2.  sugarcane

3.  wheat

4.  chilli

Subtopic:  Breeding for Disease Resistance |
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