Which part would be most suitable for raising virus-free plants for micropropagation?

1. Bark 2. Vascular tissue
3. Meristem 4. Node

Subtopic:  Plant Tissue Culture |
 96%
From NCERT
NEET - 2012
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'Jaya', and 'Ratna', developed for green revolution in India are the varieties of

1. rice

2. wheat 

3. bajra

4. maize

Subtopic:  Impact: Green Revolution (OLD NCERT) |
 88%
From NCERT
NEET - 2011
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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 (OLD NCERT) |
 95%
From NCERT
NEET - 2011
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'Himgiri' developed by hybridisation 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 (OLD NCERT) |
 91%
From NCERT
NEET - 2011
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When 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

Subtopic:  Plant Breeding & Its Steps (OLD NCERT) |
 63%
NEET - 2011
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Breeding of crops with high levels of minerals, vitamins and proteins is called

1. somatic hybridisation

2. biofortification

3. biomagnification

4. micropropogation

Subtopic:  Plant Breeding for Quality (OLD NCERT) |
 90%
From NCERT
NEET - 2010
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Somaclones are obtained by

1. tissue culture

2. plant breeding

3. irradiation

4. genetic engineering

Subtopic:  Plant Tissue Culture |
 90%
From NCERT
NEET - 2009
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In 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

Subtopic:  Animal Husbandry (OLD NCERT) |
 79%
From NCERT
NEET - 2007
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In 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

Subtopic:  Impact: Green Revolution (OLD NCERT) |
NEET - 2007
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Which one of the following is a viral disease of poultry ?

1. Salmonellosis

2. Coryza

3. New castle disease

4. Pasteurellosis

Subtopic:  Animal Husbandry (OLD NCERT) |
 60%
NEET - 2007
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