'Jaya', and 'Ratna', developed for green revolution in India are the varieties of
1. rice
2. wheat
3. bajra
4. maize
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology'Himgiri' developed by hybridisation and selection for disease resistance against rust pathogens is a variety of
1. maize
2. sugarcane
3. wheat
4. chilli
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen two unrelated individuals or lines are crossed, the performance of F1 hybrid is often
superior to both its parents. This phenomenon is called
1. transformation
2. splicing
3. metamorphosis
4. heterosis
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyBreeding of crops with high levels of minerals, vitamins and proteins is called
1. somatic hybridisation
2. biofortification
3. biomagnification
4. micropropogation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySomaclones are obtained by
1. tissue culture
2. plant breeding
3. irradiation
4. genetic engineering
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn cloning of cattle a fertilized egg is taken out of the mother's womb and:
1. the egg is divided into 4 pairs of cells which are implanted into the womb of other cows
2. in the eight cell stage, cells are separated and cultured until small embryos are formed
which are implanted into the womb of other cows
3. in the eight cell stage the individual cells are separated under electrical field for further
development in culture media
4. from this upto eight identical twins can be produced
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn maize, hybrid vigour is exploited by:
1. bombarding the seeds with DNA
2. crossing of two inbred parental lines
3. harvesting seeds from the most productive plants
4. inducing mutations
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following is a viral disease of poultry ?
1. Salmonellosis
2. Coryza
3. New castle disease
4. Pasteurellosis
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCrop plants grown in monoculture are:
1. low in yield
2. free from intraspecific competition
3. characterised by poor root system
4. highly prone to pests
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology