Mutations in plant cells can be induced by:
1. Gamma rays
2. Zeatin
3. Kinetin
4. Infrared rays
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn mung bean, resistance to yellow mosaic virus, and powdery mildew was brought about by:
1. Mutation breeding
2. Biofortification
3. Tissue culture
4. Hybridization and selection
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. IAA
2. ethylene
3. gamma radiations
4. infrared radiations
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. maize
2. sugarcane
3. wheat
4. chilli
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is generally used for induced mutagenesis in crop plants ?
1. Gamma rays (from cobalt 60)
2. Alpha particles
3. X rays
4. UV (260 nm)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhy is vivipary an undersirable character for annual crop plants -
1. It reduces the vigour of the plant
2. The seeds exhibit long dormancy
3. It adversely affects the fertility of the plant
4. The seeds cannot be stored under normal conditions for the next season
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich fungal disease spreads by seed and flowers : -
(1) Loose smut of Wheat
(2) Corn stunt
(3) Covered smut of Barley
(4) Soft rot of Potato
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology